bitrat | 4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b | Triage

Analysis

max time kernel
155s
max time network
161s
platform
windows7_x64
resource
win7-en-20211208
submitted
30-01-2022 15:03

Sharing

Report Analysis Logs

General

Target

4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
Size

3.1MB
MD5

39b28c8b6e5576deadea55b8b2981319
SHA1

a21bfef9e3f86e6e65e54bcdf97e8b4a9394639c
SHA256

4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b
SHA512

7e32a3b17adbe78af7cdf28e480d020c27f311e86d7f057619eee34d55a3a95c904cb4855c639bc60a3a4c354f805afef46f5fb02560a8fe357bffe00ce625dd

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

UPX packed file 5 IoCs

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

Processes:

resource	yara_rule
behavioral1/memory/432-62-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/432-63-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/432-64-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/432-65-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/432-66-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\System320772736e3b1d119b = "C:\\Users\\Admin\\AppData\\Local\\System320772736e3b1d119b3\\System320772736e3b1d119b.exe"	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

pid	process
432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

description	pid	process	target process
PID 1920 set thread context of 432	1920	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

Suspicious behavior: RenamesItself 5 IoCs

Processes:

4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

pid	process
432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

description	pid	process
Token: SeDebugPrivilege	432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
Token: SeShutdownPrivilege	432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

pid	process
432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
432	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

description	pid	process	target process
PID 1920 wrote to memory of 432	1920	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
PID 1920 wrote to memory of 432	1920	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
PID 1920 wrote to memory of 432	1920	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
PID 1920 wrote to memory of 432	1920	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
PID 1920 wrote to memory of 432	1920	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
PID 1920 wrote to memory of 432	1920	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
PID 1920 wrote to memory of 432	1920	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
PID 1920 wrote to memory of 432	1920	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe	4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe

C:\Users\Admin\AppData\Local\Temp\4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
"C:\Users\Admin\AppData\Local\Temp\4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1920

C:\Users\Admin\AppData\Local\Temp\4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe
"C:\Users\Admin\AppData\Local\Temp\4b63ab06439234347450346ba568d7d0daff8c8f31ea65160e39363a7c35504b.exe"
2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:432

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/432-61-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/432-66-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/432-67-0x0000000000401000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/432-65-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/432-64-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/432-63-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/432-62-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1920-57-0x00000000004E0000-0x00000000004EA000-memory.dmp

Filesize
40KB

Download
memory/1920-60-0x0000000005FA0000-0x000000000611E000-memory.dmp

Filesize
1.5MB

Download
memory/1920-59-0x0000000005BF0000-0x0000000005DC0000-memory.dmp

Filesize
1.8MB

Download
memory/1920-58-0x000000007EF40000-0x000000007EF41000-memory.dmp

Filesize
4KB

Download
memory/1920-54-0x0000000000F30000-0x0000000001248000-memory.dmp

Filesize
3.1MB

Download
memory/1920-56-0x0000000002750000-0x0000000002751000-memory.dmp

Filesize
4KB

Download
memory/1920-55-0x0000000076041000-0x0000000076043000-memory.dmp

Filesize
8KB

Download