Malware analysis bf3.exe Malicious activity | ANY.RUN

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download:	bf3.exe
Full analysis:	https://app.any.run/tasks/e6cfc921-2837-4dea-a4d4-ec3e9b9bcb73
Verdict:	Malicious activity
Threats:	Cobalt Strike is a legitimate penetration software toolkit developed by Forta. But its cracked versions are widely adopted by bad actors, who use it as a C2 system of choice for targeted attacks. Malware Trends Tracker >>>
Analysis date:	April 25, 2019, 11:18:21
OS:	Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:	cobaltstrike
MIME:	application/x-dosexec
File info:	PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows
MD5:	158A8F4B7ABAC1A77935A3E7F3A5E30C
SHA1:	D9DBAA9D949BB289C2631DB55A6BB6537D1F51D1
SHA256:	C4979B7F2D10DA7DA13A3E6B4688448D919D0A7BB7BC571D58546E99263C3E9C
SSDEEP:	192:OhHCugRK83SxHn2OQ/dmBI4KBPwgir+xz4gvsGYbbqUqV/Qjo7AGa:iCxRKqbOCdWIVBPk+xz4VffCXAn

ANY.RUN is an interactive service which provides full access to the guest system. Information in this report could be distorted by user actions and is provided for user acknowledgement as it is. ANY.RUN does not guarantee maliciousness or safety of the content.

Launch configuration

Task duration:: 120 seconds
Heavy Evasion option:: off
Network geolocation:: off
Additional time used:: 60 seconds
MITM proxy:: off
Privacy:: Public submission
Fakenet option:: off
Route via Tor:: off
Autoconfirmation of UAC:: on
Network:: on

Software preset

Internet Explorer 8.0.7601.17514 undefined
Adobe Acrobat Reader DC MUI (15.023.20070)
Adobe Flash Player 26 ActiveX (26.0.0.131)
Adobe Flash Player 26 NPAPI (26.0.0.131)
Adobe Flash Player 26 PPAPI (26.0.0.131)
Adobe Refresh Manager (1.8.0)
CCleaner (5.35)
FileZilla Client 3.36.0 (3.36.0)
Google Chrome (73.0.3683.75)
Google Update Helper (1.3.33.23)
Java 8 Update 92 (8.0.920.14)
Java Auto Updater (2.8.92.14)
Microsoft .NET Framework 4.6.1 (4.6.01055)
Microsoft Office Access MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Access Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Excel MUI (English) 2010 (14.0.6029.1000)
Microsoft Office OneNote MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Outlook MUI (English) 2010 (14.0.6029.1000)
Microsoft Office PowerPoint MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Professional 2010 (14.0.6029.1000)
Microsoft Office Proof (English) 2010 (14.0.6029.1000)
Microsoft Office Proof (French) 2010 (14.0.6029.1000)
Microsoft Office Proof (Spanish) 2010 (14.0.6029.1000)
Microsoft Office Proofing (English) 2010 (14.0.6029.1000)
Microsoft Office Publisher MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Shared Setup Metadata MUI (English) 2010 (14.0.6029.1000)
Microsoft Office Single Image 2010 (14.0.6029.1000)
Microsoft Office Word MUI (English) 2010 (14.0.6029.1000)
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161 (9.0.30729.6161)
Microsoft Visual C++ 2010 x86 Redistributable - 10.0.40219 (10.0.40219)
Microsoft Visual C++ 2013 Redistributable (x86) - 12.0.30501 (12.0.30501.0)
Microsoft Visual C++ 2013 x86 Additional Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2013 x86 Minimum Runtime - 12.0.21005 (12.0.21005)
Microsoft Visual C++ 2017 Redistributable (x86) - 14.15.26706 (14.15.26706.0)
Microsoft Visual C++ 2017 x86 Additional Runtime - 14.15.26706 (14.15.26706)
Microsoft Visual C++ 2017 x86 Minimum Runtime - 14.15.26706 (14.15.26706)
Mozilla Firefox 65.0.2 (x86 en-US) (65.0.2)
Notepad++ (32-bit x86) (7.5.1)
Opera 12.15 (12.15.1748)
Skype version 8.29 (8.29)
VLC media player (2.2.6)
WinRAR 5.60 (32-bit) (5.60.0)

Hotfixes

Client LanguagePack Package
Client Refresh LanguagePack Package
CodecPack Basic Package
Foundation Package
IE Troubleshooters Package
InternetExplorer Optional Package
KB2534111
KB2999226
KB976902
LocalPack AU Package
LocalPack CA Package
LocalPack GB Package
LocalPack US Package
LocalPack ZA Package
ProfessionalEdition
UltimateEdition

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MALICIOUS
- COBALTSTRIKE was detected
  - bf3.exe (PID: 356)
SUSPICIOUS
- Connects to server without host name
  - bf3.exe (PID: 356)
INFO
No info indicators.

Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report

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No Malware configuration.

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TRiD

.exe	\|	Win32 Executable MS Visual C++ (generic) (42.1)
.exe	\|	Win64 Executable (generic) (37.3)
.dll	\|	Win32 Dynamic Link Library (generic) (8.8)
.exe	\|	Win32 Executable (generic) (6)
.exe	\|	Generic Win/DOS Executable (2.7)

EXIF

EXE

MachineType:	Intel 386 or later, and compatibles
TimeStamp:	2018:04:05 03:01:22+02:00
PEType:	PE32
LinkerVersion:	2.22
CodeSize:	7680
InitializedDataSize:	13312
UninitializedDataSize:	1536
EntryPoint:	0x14b0
OSVersion:	4
ImageVersion:	1
SubsystemVersion:	4
Subsystem:	Windows GUI

Summary

Architecture:	IMAGE_FILE_MACHINE_I386
Subsystem:	IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date:	05-Apr-2018 01:01:22
TLS Callbacks:	2 callback(s) detected.

DOS Header

Magic number:	MZ
Bytes on last page of file:	0x0090
Pages in file:	0x0003
Relocations:	0x0000
Size of header:	0x0004
Min extra paragraphs:	0x0000
Max extra paragraphs:	0xFFFF
Initial SS value:	0x0000
Initial SP value:	0x00B8
Checksum:	0x0000
Initial IP value:	0x0000
Initial CS value:	0x0000
Overlay number:	0x0000
OEM identifier:	0x0000
OEM information:	0x0000
Address of NE header:	0x00000080

PE Headers

Signature:	PE
Machine:	IMAGE_FILE_MACHINE_I386
Number of sections:	7
Time date stamp:	05-Apr-2018 01:01:22
Pointer to Symbol Table:	0x00000000
Number of symbols:	0
Size of Optional Header:	0x00E0
Characteristics:	IMAGE_FILE_32BIT_MACHINE IMAGE_FILE_DEBUG_STRIPPED IMAGE_FILE_EXECUTABLE_IMAGE IMAGE_FILE_LINE_NUMS_STRIPPED IMAGE_FILE_LOCAL_SYMS_STRIPPED IMAGE_FILE_RELOCS_STRIPPED

Sections

Name	Virtual Address	Virtual Size	Raw Size	Charateristics	Entropy
.text	0x00001000	0x00001D04	0x00001E00	IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_2048BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_8BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ	5.83922
.data	0x00003000	0x00000424	0x00000600	IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	5.44357
.rdata	0x00004000	0x000002F4	0x00000400	IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ	4.36916
.bss	0x00005000	0x0000045C	0x00000000	IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_2048BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_8BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_UNINITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	0
.idata	0x00006000	0x000006EC	0x00000800	IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	4.20101
.CRT	0x00007000	0x00000034	0x00000200	IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	0.267013
.tls	0x00008000	0x00000020	0x00000200	IMAGE_SCN_ALIGN_1024BYTES, IMAGE_SCN_ALIGN_16BYTES, IMAGE_SCN_ALIGN_1BYTES, IMAGE_SCN_ALIGN_256BYTES, IMAGE_SCN_ALIGN_2BYTES, IMAGE_SCN_ALIGN_32BYTES, IMAGE_SCN_ALIGN_4096BYTES, IMAGE_SCN_ALIGN_4BYTES, IMAGE_SCN_ALIGN_512BYTES, IMAGE_SCN_ALIGN_64BYTES, IMAGE_SCN_ALIGN_8192BYTES, IMAGE_SCN_ALIGN_MASK, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE	0.22482

Imports


KERNEL32.dll
msvcrt.dll

No data.

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Total processes

Monitored processes

Malicious processes

Suspicious processes

Behavior graph

Click at the process to see the details

Process information

PID

CMD

Path

Indicators

Parent process

356

"C:\Users\admin\AppData\Local\Temp\bf3.exe"

C:\Users\admin\AppData\Local\Temp\bf3.exe

explorer.exe

User:

admin

Integrity Level:

MEDIUM

Exit code:

Modules

Images
c:\users\admin\appdata\local\temp\bf3.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\wininet.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\shlwapi.dll
c:\windows\system32\lpk.dll
c:\windows\system32\user32.dll

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Total events

Read events

Write events

Delete events

Modification events


(PID) Process:	(356) bf3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\bf3_RASAPI32
Operation:	write	Name:	EnableFileTracing
Value: 0
(PID) Process:	(356) bf3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\bf3_RASAPI32
Operation:	write	Name:	EnableConsoleTracing
Value: 0
(PID) Process:	(356) bf3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\bf3_RASAPI32
Operation:	write	Name:	FileTracingMask
Value: 4294901760
(PID) Process:	(356) bf3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\bf3_RASAPI32
Operation:	write	Name:	ConsoleTracingMask
Value: 4294901760
(PID) Process:	(356) bf3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\bf3_RASAPI32
Operation:	write	Name:	MaxFileSize
Value: 1048576
(PID) Process:	(356) bf3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\bf3_RASAPI32
Operation:	write	Name:	FileDirectory
Value: %windir%\tracing
(PID) Process:	(356) bf3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\bf3_RASMANCS
Operation:	write	Name:	EnableFileTracing
Value: 0
(PID) Process:	(356) bf3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\bf3_RASMANCS
Operation:	write	Name:	EnableConsoleTracing
Value: 0
(PID) Process:	(356) bf3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\bf3_RASMANCS
Operation:	write	Name:	FileTracingMask
Value: 4294901760
(PID) Process:	(356) bf3.exe	Key:	HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\bf3_RASMANCS
Operation:	write	Name:	ConsoleTracingMask
Value: 4294901760

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Executable files

Suspicious files

Text files

Unknown types

Dropped files

No data

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HTTP(S) requests

TCP/UDP connections

DNS requests

Threats

HTTP requests

PID	Process	Method	HTTP Code	IP	URL	CN	Type	Size	Reputation
356	bf3.exe	GET	200	104.248.41.209:80	http://104.248.41.209/TRAINING-BEACON	US	binary	48 b	malicious
356	bf3.exe	GET	200	104.248.41.209:80	http://104.248.41.209/TRAINING-BEACON	US	binary	48 b	malicious
356	bf3.exe	GET	200	104.248.41.209:80	http://104.248.41.209/TRAINING-BEACON	US	binary	48 b	malicious
356	bf3.exe	POST	200	104.248.41.209:80	http://104.248.41.209/TRAINING-BEACON/submit.php?id=77094	US	binary	48 b	malicious
356	bf3.exe	GET	200	104.248.41.209:80	http://104.248.41.209/TRAINING-BEACON	US	binary	48 b	malicious
356	bf3.exe	GET	200	104.248.41.209:80	http://104.248.41.209/TRAINING-BEACON	US	binary	48 b	malicious
356	bf3.exe	GET	200	104.248.41.209:80	http://104.248.41.209/TRAINING-BEACON	US	binary	48 b	malicious
356	bf3.exe	GET	200	104.248.41.209:80	http://104.248.41.209/TRAINING-BEACON	US	binary	48 b	malicious
356	bf3.exe	GET	200	104.248.41.209:80	http://104.248.41.209/TRAINING-BEACON	US	binary	207 Kb	malicious
356	bf3.exe	GET	200	104.248.41.209:80	http://104.248.41.209/eWHX	US	binary	207 Kb	malicious

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Connections

PID	Process	IP	Domain	ASN	CN	Reputation
356	bf3.exe	104.248.41.209:80	—	—	US	malicious

DNS requests

No data

Threats

PID	Process	Class	Message
356	bf3.exe	A Network Trojan was detected	MALWARE [PTsecurity] Cobalt Strike Beacon Observed
356	bf3.exe	A Network Trojan was detected	MALWARE [PTsecurity] Cobalt Strike Beacon Observed
356	bf3.exe	A Network Trojan was detected	MALWARE [PTsecurity] Cobalt Strike send output by POST binary
356	bf3.exe	Potentially Bad Traffic	ET INFO GENERIC SUSPICIOUS POST to Dotted Quad with Fake Browser 1
356	bf3.exe	A Network Trojan was detected	MALWARE [PTsecurity] Cobalt Strike Beacon Observed
356	bf3.exe	A Network Trojan was detected	MALWARE [PTsecurity] Cobalt Strike Beacon Observed
356	bf3.exe	A Network Trojan was detected	MALWARE [PTsecurity] Cobalt Strike Beacon Observed
356	bf3.exe	A Network Trojan was detected	MALWARE [PTsecurity] Cobalt Strike Beacon Observed
356	bf3.exe	A Network Trojan was detected	MALWARE [PTsecurity] Cobalt Strike Beacon Observed
356	bf3.exe	A Network Trojan was detected	MALWARE [PTsecurity] Cobalt Strike Beacon Observed

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No debug info

General Info

bf3.exe

158A8F4B7ABAC1A77935A3E7F3A5E30C

D9DBAA9D949BB289C2631DB55A6BB6537D1F51D1

C4979B7F2D10DA7DA13A3E6B4688448D919D0A7BB7BC571D58546E99263C3E9C

192:OhHCugRK83SxHn2OQ/dmBI4KBPwgir+xz4gvsGYbbqUqV/Qjo7AGa:iCxRKqbOCdWIVBPk+xz4VffCXAn

Software environment set and analysis options

Launch configuration

Software preset

Hotfixes

Behavior activities

MALICIOUS

COBALTSTRIKE was detected

SUSPICIOUS

Connects to server without host name

INFO

Malware configuration

Static information

TRiD

EXIF

EXE

Summary

DOS Header

PE Headers

Sections

Imports

Video and screenshots

Processes

Behavior graph

Specs description

Process information

Information

Modules

Registry activity

Modification events

Files activity

Dropped files

Network activity

HTTP requests

Connections

DNS requests

Threats

Debug output strings