bitrat | 3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7 | Triage

Analysis

max time kernel
152s
max time network
158s
platform
windows7_x64
resource
win7-en-20211208
submitted
30-01-2022 15:27

Sharing

Report Analysis Logs

General

Target

3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
Size

2.1MB
MD5

1b94152164f2fa88604d9942bd91addf
SHA1

d25c0f37cb6e9d24301756fada9b6099f798e87d
SHA256

3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7
SHA512

dc53d7a69b1320565d2e2fed0468246a5d34773ed6050121eede4ff25a26076d78bab2518c31e315ef5dcd582f23360a1d0415a243d22458813c3262b3c1cacf

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
behavioral1/memory/1412-59-0x0000000000C80000-0x0000000000C8C000-memory.dmp	CustAttr

UPX packed file 5 IoCs

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

Processes:

resource	yara_rule
behavioral1/memory/1180-63-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1180-64-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1180-65-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1180-66-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1180-68-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Microsoft\Windows\CurrentVersion\Run\System320772736e3b1d119b = "C:\\Users\\Admin\\AppData\\Local\\System320772736e3b1d119b3\\System320772736e3b1d119b.exe"	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

pid	process
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

description	pid	process	target process
PID 1412 set thread context of 1180	1412	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

Suspicious behavior: RenamesItself 8 IoCs

Processes:

3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

pid	process
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

description	pid	process
Token: SeDebugPrivilege	1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
Token: SeShutdownPrivilege	1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

pid	process
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
1180	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

description	pid	process	target process
PID 1412 wrote to memory of 1180	1412	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
PID 1412 wrote to memory of 1180	1412	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
PID 1412 wrote to memory of 1180	1412	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
PID 1412 wrote to memory of 1180	1412	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
PID 1412 wrote to memory of 1180	1412	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
PID 1412 wrote to memory of 1180	1412	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
PID 1412 wrote to memory of 1180	1412	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
PID 1412 wrote to memory of 1180	1412	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe	3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe

C:\Users\Admin\AppData\Local\Temp\3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
"C:\Users\Admin\AppData\Local\Temp\3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1412

C:\Users\Admin\AppData\Local\Temp\3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe
"C:\Users\Admin\AppData\Local\Temp\3a3c032d71e9d97f17981bbef8e3d64fc0fe81f5fb8177f3f17dc2264ffd91c7.exe"
2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1180

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/1180-62-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1180-69-0x0000000000401000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1180-68-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1180-66-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1180-65-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1180-64-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1180-63-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1412-58-0x000000007EF40000-0x000000007EFA0000-memory.dmp

Filesize
384KB

Download
memory/1412-61-0x0000000008C50000-0x0000000008DCC000-memory.dmp

Filesize
1.5MB

Download
memory/1412-60-0x0000000005830000-0x00000000059FE000-memory.dmp

Filesize
1.8MB

Download
memory/1412-59-0x0000000000C80000-0x0000000000C8C000-memory.dmp

Filesize
48KB

Download
memory/1412-55-0x0000000001220000-0x000000000143E000-memory.dmp

Filesize
2.1MB

Download
memory/1412-57-0x0000000004DC0000-0x0000000004DC1000-memory.dmp

Filesize
4KB

Download
memory/1412-56-0x0000000076851000-0x0000000076853000-memory.dmp

Filesize
8KB

Download