bitrat | 9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421 | Triage

Analysis

max time kernel
156s
max time network
164s
platform
windows10_x64
resource
win10-en-20211208
submitted
21-01-2022 23:26

Sharing

Report Analysis Logs

General

Target

9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
Size

2.4MB
MD5

c41330626c45d83ec82189c8d3335f60
SHA1

44f20c13a6c784fe05f6ef170886a787bd2e90c5
SHA256

9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421
SHA512

4a905b8392263d4275b8e0fee983a7018000aae404d811c92340dad7b337377565ac1a4e7e40529f3d70fb3fc146eef7fc103994b4b1fdbe4fda9daf2b722fde

Score

10^/10

bitrat persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.35

C2

publiquilla.linkpc.net:9097

Attributes

communication_password
bfdba24ee3d61f0260c4dc1034c3ee43
install_dir
System320772736e3b1d119b3
install_file
System320772736e3b1d119b.exe
tor_process
tor

Signatures

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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

Processes:

resource	yara_rule
behavioral2/memory/3348-122-0x0000000005370000-0x000000000537C000-memory.dmp	CustAttr

UPX packed file 3 IoCs

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

Processes:

resource	yara_rule
behavioral2/memory/604-126-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/604-127-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/604-128-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 2 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\System320772736e3b1d119b = "C:\\Users\\Admin\\AppData\\Local\\System320772736e3b1d119b3\\System320772736e3b1d119b.exe\uff00"	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-369956170-74428499-1628131376-1000\Software\Microsoft\Windows\CurrentVersion\Run\System320772736e3b1d119b = "C:\\Users\\Admin\\AppData\\Local\\System320772736e3b1d119b3\\System320772736e3b1d119b.exe"	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

pid	process
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

description	pid	process	target process
PID 3348 set thread context of 604	3348	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

Suspicious behavior: RenamesItself 7 IoCs

Processes:

9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

pid	process
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

description pid process

Token: SeShutdownPrivilege 604 9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

pid	process
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
604	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

description	pid	process	target process
PID 3348 wrote to memory of 604	3348	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
PID 3348 wrote to memory of 604	3348	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
PID 3348 wrote to memory of 604	3348	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
PID 3348 wrote to memory of 604	3348	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
PID 3348 wrote to memory of 604	3348	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
PID 3348 wrote to memory of 604	3348	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
PID 3348 wrote to memory of 604	3348	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe	9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe

C:\Users\Admin\AppData\Local\Temp\9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
"C:\Users\Admin\AppData\Local\Temp\9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3348

C:\Users\Admin\AppData\Local\Temp\9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe
"C:\Users\Admin\AppData\Local\Temp\9ab79ee79a84bc24d8b08284d6016b9c0a3674b5595f059d0b5967f46b1eb421.exe"
2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:604

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Privilege Escalation

Defense Evasion

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/604-126-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/604-128-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/604-127-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/3348-121-0x0000000002820000-0x00000000028BC000-memory.dmp

Filesize
624KB

Download
memory/3348-119-0x0000000002850000-0x000000000285A000-memory.dmp

Filesize
40KB

Download
memory/3348-120-0x0000000004FD0000-0x0000000005026000-memory.dmp

Filesize
344KB

Download
memory/3348-115-0x0000000000220000-0x0000000000494000-memory.dmp

Filesize
2.5MB

Download
memory/3348-122-0x0000000005370000-0x000000000537C000-memory.dmp

Filesize
48KB

Download
memory/3348-123-0x000000007F280000-0x000000007F281000-memory.dmp

Filesize
4KB

Download
memory/3348-124-0x0000000005F40000-0x000000000614C000-memory.dmp

Filesize
2.0MB

Download
memory/3348-125-0x0000000009530000-0x00000000096EE000-memory.dmp

Filesize
1.7MB

Download
memory/3348-118-0x0000000004DE0000-0x0000000004E72000-memory.dmp

Filesize
584KB

Download
memory/3348-117-0x0000000005410000-0x000000000590E000-memory.dmp

Filesize
5.0MB

Download
memory/3348-116-0x0000000004D40000-0x0000000004DDC000-memory.dmp

Filesize
624KB

Download