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File name:

BerserkBear Downloader.bin

Full analysis: https://app.any.run/tasks/906db9d5-547d-45cf-a586-ee222acbe911
Verdict: Malicious activity
Threats:

Trojans are a group of malicious programs distinguished by their ability to masquerade as benign software. Depending on their type, trojans possess a variety of capabilities, ranging from maintaining full remote control over the victim’s machine to stealing data and files, as well as dropping other malware. At the same time, the main functionality of each trojan family can differ significantly depending on its type. The most common trojan infection chain starts with a phishing email.

Analysis date: July 31, 2018, 19:24:10
OS: Windows 7 Professional Service Pack 1 (build: 7601, 32 bit)
Tags:
trojan
Indicators:
MIME: application/x-dosexec
File info: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows
MD5:

F7C5D117C91BD22FA17D2D5444FF7AB7

SHA1:

DF74D60E69213DEC424F1D2C02554A7CD36EFDED

SHA256:

CB3306AECB05FCCAAC51A036F361991745A4EF90D8D9EC713D783C88605EA556

SSDEEP:

49152:CnJ97kOsg9TmxMjVGu8e6BYjJOcxCOInS35WmxWTj:k97n9TIMCpYjEYyj

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

    • Connects to CnC server

      • BerserkBear Downloader.bin.exe (PID: 3436)
  • SUSPICIOUS

    No suspicious indicators.
  • 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) (52.7)
.exe | Generic Win/DOS Executable (23.4)
.exe | DOS Executable Generic (23.4)
.vxd | VXD Driver (0.3)

EXIF

EXE

Subsystem: Windows GUI
SubsystemVersion: 4
ImageVersion: 1
OSVersion: 4
EntryPoint: 0x4a7e0
UninitializedDataSize: -
InitializedDataSize: 163328
CodeSize: 2978304
LinkerVersion: 3
PEType: PE32
TimeStamp: 0000:00:00 00:00:00
MachineType: Intel 386 or later, and compatibles

Summary

Architecture: IMAGE_FILE_MACHINE_I386
Subsystem: IMAGE_SUBSYSTEM_WINDOWS_GUI
Compilation Date: 01-Jan-1970 00:00:00

DOS Header

Magic number: MZ
Bytes on last page of file: 0x0090
Pages in file: 0x0003
Relocations: 0x0004
Size of header: 0x0000
Min extra paragraphs: 0x0000
Max extra paragraphs: 0xFFFF
Initial SS value: 0x0000
Initial SP value: 0x008B
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: 4
Time date stamp: 01-Jan-1970 00:00:00
Pointer to Symbol Table: 0x002FF800
Number of symbols: 0
Size of Optional Header: 0x00E0
Characteristics:
  • IMAGE_FILE_32BIT_MACHINE
  • IMAGE_FILE_DEBUG_STRIPPED
  • IMAGE_FILE_EXECUTABLE_IMAGE
  • IMAGE_FILE_RELOCS_STRIPPED

Sections

Name
Virtual Address
Virtual Size
Raw Size
Charateristics
Entropy
.text
0x00001000
0x002D70D2
0x002D7200
IMAGE_SCN_CNT_CODE, IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_EXECUTE, IMAGE_SCN_MEM_READ
6.19264
.data
0x002D9000
0x0003E5E0
0x00027E00
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
5.73496
.idata
0x00318000
0x000003D2
0x00000400
IMAGE_SCN_CNT_INITIALIZED_DATA, IMAGE_SCN_MEM_READ, IMAGE_SCN_MEM_WRITE
3.9294
.symtab
0x00319000
0x00000004
0x00000200
IMAGE_SCN_MEM_DISCARDABLE, IMAGE_SCN_MEM_READ
0.0203931

Imports

KERNEL32.DLL
winmm.dll
ws2_32.dll
No data.
screenshot
All screenshots are available in the full report
All screenshots are available in the full report
Total processes
33
Monitored processes
1
Malicious processes
0
Suspicious processes
0

Behavior graph

Click at the process to see the details
start berserkbear downloader.bin.exe

Process information

PID
CMD
Path
Indicators
Parent process
3436"C:\Users\admin\AppData\Local\Temp\BerserkBear Downloader.bin.exe" C:\Users\admin\AppData\Local\Temp\BerserkBear Downloader.bin.exe
explorer.exe
User:
admin
Integrity Level:
MEDIUM
Total events
7
Read events
7
Write events
0
Delete events
0

Modification events

No data
Executable files
0
Suspicious files
0
Text files
0
Unknown types
0

Dropped files

No data
Download PCAP, analyze network streams, HTTP content and a lot more at the full report
HTTP(S) requests
1
TCP/UDP connections
1
DNS requests
0
Threats
0

HTTP requests

PID
Process
Method
HTTP Code
IP
URL
CN
Type
Size
Reputation
3436
BerserkBear Downloader.bin.exe
GET
404
82.222.188.18:80
http://82.222.188.18/aspnet_client/system_web/4_0_30319/update/DefaultForm.txt?28e=ea5ebbddc9009bde0a4ba2e3cf3e2d08&pfr=881456FCno&85f=c760f4a80281c4c85f1720a94b1582a0
TR
html
315 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
3436
BerserkBear Downloader.bin.exe
82.222.188.18:80
Tellcom Iletisim Hizmetleri A.s.
TR
malicious

DNS requests

No data

Threats

PID
Process
Class
Message
3436
BerserkBear Downloader.bin.exe
A Network Trojan was detected
ET TROJAN Dragonfly Backdoor.Goodor Go Implant CnC Beacon 1
3436
BerserkBear Downloader.bin.exe
Misc activity
ET USER_AGENTS Go HTTP Client User-Agent
No debug info