bitrat | 42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83 | Triage

Analysis

max time kernel
156s
max time network
136s
platform
windows7_x64
resource
win7-en-20211208
submitted
30-01-2022 15:14

Sharing

Report Analysis Logs

General

Target

42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
Size

2.5MB
MD5

da75625314149cda325f1a1ccbd66033
SHA1

340ed32ccf9fd811adbe3763f857e997555ae15b
SHA256

42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83
SHA512

15c57ae5840245d3d72da41fe0856f692c3852fb566d5436d4c6dd15fb12a10e39633e03c06ccf7068de4a2d71fedf3c7735ac4fb38b7fde2a8fe80f86ea4df3

Score

10^/10

bitrat persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

jairoandresotalvarorend.linkpc.net:9083

Attributes

communication_password
bfdba24ee3d61f0260c4dc1034c3ee43
install_dir
winlogomwindefenders
install_file
winlogomwindefender.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/1988-61-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1988-62-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1988-63-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1988-64-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/1988-66-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3846991908-3261386348-1409841751-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogomwindefender = "C:\\Users\\Admin\\AppData\\Local\\winlogomwindefenders\\winlogomwindefender.exe"	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

pid	process
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

description	pid	process	target process
PID 1540 set thread context of 1988	1540	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

Suspicious behavior: RenamesItself 12 IoCs

Processes:

42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

pid	process
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

description	pid	process
Token: SeDebugPrivilege	1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
Token: SeShutdownPrivilege	1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

pid	process
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
1988	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

description	pid	process	target process
PID 1540 wrote to memory of 1988	1540	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
PID 1540 wrote to memory of 1988	1540	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
PID 1540 wrote to memory of 1988	1540	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
PID 1540 wrote to memory of 1988	1540	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
PID 1540 wrote to memory of 1988	1540	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
PID 1540 wrote to memory of 1988	1540	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
PID 1540 wrote to memory of 1988	1540	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
PID 1540 wrote to memory of 1988	1540	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe	42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe

C:\Users\Admin\AppData\Local\Temp\42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
"C:\Users\Admin\AppData\Local\Temp\42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1540

C:\Users\Admin\AppData\Local\Temp\42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe
"C:\Users\Admin\AppData\Local\Temp\42628b413ead75bfc7bfa66523c2cd96ab1bfb2f01be66091821d8df0013ff83.exe"
2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1988

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/1540-54-0x0000000000C20000-0x0000000000E9E000-memory.dmp

Filesize
2.5MB

Download
memory/1540-55-0x0000000075891000-0x0000000075893000-memory.dmp

Filesize
8KB

Download
memory/1540-56-0x0000000005050000-0x0000000005051000-memory.dmp

Filesize
4KB

Download
memory/1540-57-0x0000000000490000-0x00000000004AE000-memory.dmp

Filesize
120KB

Download
memory/1540-58-0x0000000008DF0000-0x0000000008FE0000-memory.dmp

Filesize
1.9MB

Download
memory/1540-59-0x000000000C390000-0x000000000C506000-memory.dmp

Filesize
1.5MB

Download
memory/1988-60-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1988-61-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1988-62-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1988-63-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1988-64-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1988-66-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/1988-67-0x0000000000401000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download