bitrat | 7b384d4cad84fa53ded2466e2600f2658b85f66d7155cf4895d1f81810c82ca5

Resubmissions

07-12-2022 19:02

221207-xps29sff88 10

07-12-2022 18:58

221207-xmhthsag6v 1

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
07-12-2022 19:02

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General

Target

67_03_635_PDF.exe
Size

3.0MB
MD5

147c968922ab4d76d5b63ea9514bff69
SHA1

4ea9cf1c7703e3f0ed5a7be291dc27b44230d771
SHA256

7b384d4cad84fa53ded2466e2600f2658b85f66d7155cf4895d1f81810c82ca5
SHA512

2f7146db39f13edd8ff10aebaa554366fcf33754521b25d29e354bfb4e29f9f2b22438a847f3c52b736791237191214e718bd8b361dcd6b2b8ccecdcebdd2391
SSDEEP

98304:y81XfekfvDqec/kf3MuR38VDRkB00XWz+pGi:y8ZWQOLsf52V1k+0I

Score

10^/10

bitrat persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

bitrat7090.duckdns.org:7090

Attributes

communication_password
e10adc3949ba59abbe56e057f20f883e
tor_process
tor

Signatures

BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
trojan bitrat

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral3/memory/732-143-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral3/memory/732-144-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral3/memory/732-145-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral3/memory/732-146-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral3/memory/732-147-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral3/memory/732-150-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	67_03_635_PDF.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Yghwc = "\"C:\\Users\\Admin\\AppData\\Roaming\\Jszkqdhpyr\\Yghwc.exe\""	67_03_635_PDF.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
732	67_03_635_PDF.exe
732	67_03_635_PDF.exe
732	67_03_635_PDF.exe
732	67_03_635_PDF.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3464 set thread context of 732	3464	67_03_635_PDF.exe	83

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4200	powershell.exe
4200	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3464	67_03_635_PDF.exe
Token: SeDebugPrivilege	4200	powershell.exe
Token: SeShutdownPrivilege	732	67_03_635_PDF.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
732	67_03_635_PDF.exe
732	67_03_635_PDF.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3464 wrote to memory of 4200	3464	67_03_635_PDF.exe	80
PID 3464 wrote to memory of 4200	3464	67_03_635_PDF.exe	80
PID 3464 wrote to memory of 4200	3464	67_03_635_PDF.exe	80
PID 3464 wrote to memory of 732	3464	67_03_635_PDF.exe	83
PID 3464 wrote to memory of 732	3464	67_03_635_PDF.exe	83
PID 3464 wrote to memory of 732	3464	67_03_635_PDF.exe	83
PID 3464 wrote to memory of 732	3464	67_03_635_PDF.exe	83
PID 3464 wrote to memory of 732	3464	67_03_635_PDF.exe	83
PID 3464 wrote to memory of 732	3464	67_03_635_PDF.exe	83
PID 3464 wrote to memory of 732	3464	67_03_635_PDF.exe	83

C:\Users\Admin\AppData\Local\Temp\67_03_635_PDF.exe
"C:\Users\Admin\AppData\Local\Temp\67_03_635_PDF.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3464
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAANQA1AA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4200
- C:\Users\Admin\AppData\Local\Temp\67_03_635_PDF.exe
  C:\Users\Admin\AppData\Local\Temp\67_03_635_PDF.exe
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:732

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/732-147-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/732-145-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/732-144-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/732-143-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/732-152-0x0000000074B50000-0x0000000074B89000-memory.dmp

Filesize
228KB

Download
memory/732-151-0x0000000074B50000-0x0000000074B89000-memory.dmp

Filesize
228KB

Download
memory/732-150-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/732-149-0x0000000074B50000-0x0000000074B89000-memory.dmp

Filesize
228KB

Download
memory/732-148-0x00000000747D0000-0x0000000074809000-memory.dmp

Filesize
228KB

Download
memory/732-146-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/3464-133-0x0000000006CC0000-0x0000000006CE2000-memory.dmp

Filesize
136KB

Download
memory/3464-132-0x0000000000FE0000-0x00000000012EC000-memory.dmp

Filesize
3.0MB

Download
memory/4200-138-0x00000000059C0000-0x0000000005A26000-memory.dmp

Filesize
408KB

Download
memory/4200-135-0x0000000004A70000-0x0000000004AA6000-memory.dmp

Filesize
216KB

Download
memory/4200-136-0x00000000051A0000-0x00000000057C8000-memory.dmp

Filesize
6.2MB

Download
memory/4200-141-0x00000000063F0000-0x000000000640A000-memory.dmp

Filesize
104KB

Download
memory/4200-140-0x0000000007640000-0x0000000007CBA000-memory.dmp

Filesize
6.5MB

Download
memory/4200-139-0x0000000005F70000-0x0000000005F8E000-memory.dmp

Filesize
120KB

Download
memory/4200-137-0x00000000050F0000-0x0000000005156000-memory.dmp

Filesize
408KB

Download