File name:

ak.exe

Full analysis: https://app.any.run/tasks/2eff468a-589c-460c-a0f6-5bdac20ef6ae
Verdict: Malicious activity
Threats:

Stealers are a group of malicious software that are intended for gaining unauthorized access to users’ information and transferring it to the attacker. The stealer malware category includes various types of programs that focus on their particular kind of data, including files, passwords, and cryptocurrency. Stealers are capable of spying on their targets by recording their keystrokes and taking screenshots. This type of malware is primarily distributed as part of phishing campaigns.

Analysis date: October 29, 2019, 22:48:43
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
stealer
vidar
nocturnal
evasion
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386, for MS Windows
MD5:

66C9B3CE611BDC43DFDD5FAB8AFE8729

SHA1:

89CBE67072245263CD8330348D461618F35DDF75

SHA256:

AC3ED65482599C01DA35F9543BBA54D6F7E533A3B771B43DF07104DB02B9459D

SSDEEP:

12288:nPNsFA4ZgB0+z1j/lFZ7e6/yc3w5V25FxckemHr5udGUk1D3H:P54i6qlHifqwezcderF1D3H

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.
  • MALICIOUS

    • Application was dropped or rewritten from another process

      • arkei.exe (PID: 3316)
    • VIDAR was detected

      • arkei.exe (PID: 3316)
    • Stealing of credential data

      • arkei.exe (PID: 3316)
    • Actions looks like stealing of personal data

      • arkei.exe (PID: 3316)
  • SUSPICIOUS

    • Executable content was dropped or overwritten

      • ak.exe (PID: 1896)
    • Loads DLL from Mozilla Firefox

      • arkei.exe (PID: 3316)
    • Reads the cookies of Mozilla Firefox

      • arkei.exe (PID: 3316)
    • Creates files in the user directory

      • arkei.exe (PID: 3316)
    • Creates files in the program directory

      • arkei.exe (PID: 3316)
    • Reads the cookies of Google Chrome

      • arkei.exe (PID: 3316)
    • Starts CMD.EXE for commands execution

      • arkei.exe (PID: 3316)
    • Executes application which crashes

      • arkei.exe (PID: 3316)
    • Uses TASKKILL.EXE to kill process

      • cmd.exe (PID: 1952)
    • Checks for external IP

      • arkei.exe (PID: 3316)
  • INFO

    No info indicators.
Find more information about signature artifacts and mapping to MITRE ATT&CK™ MATRIX at the full report
No Malware configuration.

TRiD

.exe | Win32 Executable (generic) (52.9)
.exe | Generic Win/DOS Executable (23.5)
.exe | DOS Executable Generic (23.5)

EXIF

EXE

MachineType: Intel 386 or later, and compatibles
TimeStamp: 2019:02:01 14:25:33+01:00
PEType: PE32
LinkerVersion: 12
CodeSize: 78336
InitializedDataSize: 123090944
UninitializedDataSize: -
EntryPoint: 0x2e65
OSVersion: 5.1
ImageVersion: -
SubsystemVersion: 5.1
Subsystem: Windows GUI
FileVersionNumber: 11.0.0.0
ProductVersionNumber: 11.0.0.0
FileFlagsMask: 0x003f
FileFlags: Debug, Pre-release, Patched, Private build, Special build
FileOS: Windows NT 32-bit
ObjectFileType: Executable application
FileSubtype: -
LanguageCode: English (U.S.)
CharacterSet: Windows, Latin1
ProductVersion: 2.0.6.4
InternalName: gjfkyfli;.exe

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 01-Feb-2019 13:25:33
Detected languages:
  • English - United States
ProductVersion: 2.0.6.4
InternalName: gjfkyfli;.exe

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: 0x000000E8

PE Headers

Signature: PE
Machine: IMAGE_FILE_MACHINE_I386
Number of sections: 5
Time date stamp: 01-Feb-2019 13:25:33
Pointer to Symbol Table: 0x00000000
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_LOCAL_SYMS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x000130B1
0x00013200
IMAGE_SCN_CNT_CODE, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.67949
.rdata
0x00015000
0x00006CF2
0x00006E00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.84216
.data
0x0001C000
0x0755B70C
0x000A7000
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
5.22742
.rsrc
0x07578000
0x00000866
0x00000A00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ
4.59836
.reloc
0x07579000
0x00001464
0x00001600
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
6.37277

Resources

Title
Entropy
Size
Codepage
Language
Type
1
5.12882
1515
UNKNOWN
UNKNOWN
RT_MANIFEST
463
2.32193
10
UNKNOWN
UNKNOWN
UNKNOWN
464
2.32193
10
UNKNOWN
UNKNOWN
UNKNOWN

Imports

ADVAPI32.dll
KERNEL32.dll
USER32.dll
No data.
screenshotscreenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
43
Monitored processes
6
Malicious processes
2
Suspicious processes
0

Behavior graph

Click at the process to see the details
drop and start start ak.exe #VIDAR arkei.exe ntvdm.exe no specs cmd.exe no specs cmd.exe no specs taskkill.exe no specs

Process information

PID
CMD
Path
Indicators
Parent process
1896"C:\Users\admin\AppData\Local\Temp\ak.exe" C:\Users\admin\AppData\Local\Temp\ak.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\ak.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
1952"C:\Windows\System32\cmd.exe" /c taskkill /im arkei.exe /f & erase C:\Users\admin\AppData\Local\Temp\IXP000.TMP\arkei.exe & exitC:\Windows\System32\cmd.exearkei.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
1
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
3316C:\Users\admin\AppData\Local\Temp\IXP000.TMP\arkei.exeC:\Users\admin\AppData\Local\Temp\IXP000.TMP\arkei.exe
ak.exe
User:
admin
Integrity Level:
MEDIUM
Exit code:
0
Modules
Images
c:\users\admin\appdata\local\temp\ixp000.tmp\arkei.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\advapi32.dll
3708"C:\Windows\system32\cmd.exe" rd /s /q C:\ProgramData\ZMN2EY1JVMZ1C8C:\Windows\system32\cmd.exearkei.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Windows Command Processor
Exit code:
0
Version:
6.1.7601.17514 (win7sp1_rtm.101119-1850)
Modules
Images
c:\windows\system32\cmd.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\winbrand.dll
c:\windows\system32\user32.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\lpk.dll
c:\windows\system32\usp10.dll
4016"C:\Windows\system32\ntvdm.exe" -i1 C:\Windows\system32\ntvdm.exearkei.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
NTVDM.EXE
Exit code:
0
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\ntvdm.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\gdi32.dll
c:\windows\system32\user32.dll
4064taskkill /im arkei.exe /f C:\Windows\system32\taskkill.execmd.exe
User:
admin
Company:
Microsoft Corporation
Integrity Level:
MEDIUM
Description:
Terminates Processes
Exit code:
128
Version:
6.1.7600.16385 (win7_rtm.090713-1255)
Modules
Images
c:\windows\system32\taskkill.exe
c:\systemroot\system32\ntdll.dll
c:\windows\system32\kernel32.dll
c:\windows\system32\kernelbase.dll
c:\windows\system32\advapi32.dll
c:\windows\system32\msvcrt.dll
c:\windows\system32\sechost.dll
c:\windows\system32\rpcrt4.dll
c:\windows\system32\version.dll
c:\windows\system32\user32.dll
Total events
85
Read events
67
Write events
18
Delete events
0

Modification events

(PID) Process:(3316) arkei.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\arkei_RASAPI32
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(3316) arkei.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\arkei_RASAPI32
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(3316) arkei.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\arkei_RASAPI32
Operation:writeName:FileTracingMask
Value:
4294901760
(PID) Process:(3316) arkei.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\arkei_RASAPI32
Operation:writeName:ConsoleTracingMask
Value:
4294901760
(PID) Process:(3316) arkei.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\arkei_RASAPI32
Operation:writeName:MaxFileSize
Value:
1048576
(PID) Process:(3316) arkei.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\arkei_RASAPI32
Operation:writeName:FileDirectory
Value:
%windir%\tracing
(PID) Process:(3316) arkei.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\arkei_RASMANCS
Operation:writeName:EnableFileTracing
Value:
0
(PID) Process:(3316) arkei.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\arkei_RASMANCS
Operation:writeName:EnableConsoleTracing
Value:
0
(PID) Process:(3316) arkei.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\arkei_RASMANCS
Operation:writeName:FileTracingMask
Value:
4294901760
(PID) Process:(3316) arkei.exeKey:HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Tracing\arkei_RASMANCS
Operation:writeName:ConsoleTracingMask
Value:
4294901760
Executable files
1
Suspicious files
1
Text files
11
Unknown types
5

Dropped files

PID
Process
Filename
Type
3316arkei.exeC:\ProgramData\ZMN2EY1JVMZ1C8\c-shm
MD5:
SHA256:
3316arkei.exeC:\ProgramData\ZMN2EY1JVMZ1C8\history
MD5:
SHA256:
3316arkei.exeC:\ProgramData\ZMN2EY1JVMZ1C8\history-shm
MD5:
SHA256:
3316arkei.exeC:\ProgramData\ZMN2EY1JVMZ1C8\files\Skype\live#3agabriel.radrigos_main.db
MD5:
SHA256:
3316arkei.exeC:\ProgramData\ZMN2EY1JVMZ1C8\files\cookie_list.txt
MD5:
SHA256:
3316arkei.exeC:\ProgramData\ZMN2EY1JVMZ1C8\files\information.txt
MD5:
SHA256:
3316arkei.exeC:\ProgramData\ZMN2EY1JVMZ1C8\files\screenshot.jpg
MD5:
SHA256:
3316arkei.exeC:\ProgramData\ZMN2EY1JVMZ1C8\files\Desktop.zip
MD5:
SHA256:
3316arkei.exeC:\ProgramData\ZMN2EY1JVMZ1C8\files\passwords.txttext
MD5:
SHA256:
3316arkei.exeC:\Users\admin\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\LH043OAM\index[1].phptext
MD5:
SHA256:
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
4
TCP/UDP connections
3
DNS requests
3
Threats
25

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3316
arkei.exe
POST
200
31.31.198.66:80
http://gotrafforest.xyz/index.php
RU
text
52 b
malicious
3316
arkei.exe
POST
200
31.31.198.66:80
http://gotrafforest.xyz/index.php
RU
text
41 b
malicious
3316
arkei.exe
POST
200
185.194.141.58:80
http://ip-api.com/line/
DE
text
145 b
malicious
3316
arkei.exe
POST
403
185.50.25.48:80
http://c96965ei.beget.tech/1.exe
RU
html
179 b
malicious
Download PCAP, analyze network streams, HTTP content and a lot more at the full report

Connections

PID
Process
IP
Domain
ASN
CN
Reputation
3316
arkei.exe
31.31.198.66:80
gotrafforest.xyz
Domain names registrar REG.RU, Ltd
RU
malicious
3316
arkei.exe
185.50.25.48:80
c96965ei.beget.tech
Beget Ltd
RU
malicious
3316
arkei.exe
185.194.141.58:80
ip-api.com
netcup GmbH
DE
unknown

DNS requests

Domain
IP
Reputation
gotrafforest.xyz
  • 31.31.198.66
malicious
ip-api.com
  • 185.194.141.58
malicious
c96965ei.beget.tech
  • 185.50.25.48
unknown

Threats

PID
Process
Class
Message
3316
arkei.exe
A Network Trojan was detected
SUSPICIOUS [PTsecurity] Possible Generic.Trojan Boundary
3316
arkei.exe
Potentially Bad Traffic
AV INFO HTTP Request to a *.xyz domain
3316
arkei.exe
A Network Trojan was detected
MALWARE [PTsecurity] Generic.PWS.Arkei Stealers Header (Vidar)
3316
arkei.exe
A Network Trojan was detected
MALWARE [PTsecurity] Arkei/Vidar Stealer HTTP Response
3316
arkei.exe
A Network Trojan was detected
MALWARE [PTsecurity] Vidar Stealer Server Response
3316
arkei.exe
A Network Trojan was detected
SUSPICIOUS [PTsecurity] Possible Generic.Trojan Boundary
3316
arkei.exe
Potentially Bad Traffic
AV INFO HTTP Request to a *.xyz domain
3316
arkei.exe
A Network Trojan was detected
ET TROJAN Vidar/Arkei Stealer Client Data Upload
3316
arkei.exe
A Network Trojan was detected
MALWARE [PTsecurity] Generic Stealers activity (Nocturnal/Vidar)
3316
arkei.exe
A Network Trojan was detected
MALWARE [PTsecurity] Nocturnal Stealer
9 ETPRO signatures available at the full report
No debug info