bitrat | 93dd445822c1c5b30270fc5552a71a02eab536a80ba51e345632d2be18aded49 | Triage

Analysis

max time kernel
111s
max time network
162s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
06-01-2024 10:41

Sharing

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General

Target

4594a8618274c5732c58bcb6f246919a.exe
Size

2.1MB
MD5

4594a8618274c5732c58bcb6f246919a
SHA1

4f8713c078388eb8d06f24d4549a8175e8135b65
SHA256

93dd445822c1c5b30270fc5552a71a02eab536a80ba51e345632d2be18aded49
SHA512

6615279fa9e7f72a3c42eeb01e96ae00ed3804e71456e044c574e1a732c43b04df9b42258099326f23d0bc6d4356995f2ee3b192e9b0f246cdf75af43f5e7fe3
SSDEEP

49152:sOmCTw0KHYYTduGYRwIwbYM5wSHIafXw:/LKNh7YRwIw0SPv

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 16 IoCs

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

Processes:

resource	yara_rule
behavioral1/memory/2580-10-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-19-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-17-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-16-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-15-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-14-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-9-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-20-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-21-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-25-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-27-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-23-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-29-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-28-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-30-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral1/memory/2580-31-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

Registry Run Keys / Startup Folder

Modify Registry

Processes:

4594a8618274c5732c58bcb6f246919a.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1268429524-3929314613-1992311491-1000\Software\Microsoft\Windows\CurrentVersion\Run\winlogomwindefender = "C:\\Users\\Admin\\AppData\\Local\\winlogomwindefenders\\winlogomwindefender.exe"	4594a8618274c5732c58bcb6f246919a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

Processes:

4594a8618274c5732c58bcb6f246919a.exe

pid	process
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

4594a8618274c5732c58bcb6f246919a.exe

description pid process target process

PID 2128 set thread context of 2580 2128 4594a8618274c5732c58bcb6f246919a.exe 4594a8618274c5732c58bcb6f246919a.exe

Suspicious behavior: RenamesItself 11 IoCs

Processes:

4594a8618274c5732c58bcb6f246919a.exe

pid	process
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe
2580	4594a8618274c5732c58bcb6f246919a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

4594a8618274c5732c58bcb6f246919a.exe

description	pid	process
Token: SeDebugPrivilege	2580	4594a8618274c5732c58bcb6f246919a.exe
Token: SeShutdownPrivilege	2580	4594a8618274c5732c58bcb6f246919a.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

4594a8618274c5732c58bcb6f246919a.exe

pid process

2580 4594a8618274c5732c58bcb6f246919a.exe
2580 4594a8618274c5732c58bcb6f246919a.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

4594a8618274c5732c58bcb6f246919a.exe

description	pid	process	target process
PID 2128 wrote to memory of 2580	2128	4594a8618274c5732c58bcb6f246919a.exe	4594a8618274c5732c58bcb6f246919a.exe
PID 2128 wrote to memory of 2580	2128	4594a8618274c5732c58bcb6f246919a.exe	4594a8618274c5732c58bcb6f246919a.exe
PID 2128 wrote to memory of 2580	2128	4594a8618274c5732c58bcb6f246919a.exe	4594a8618274c5732c58bcb6f246919a.exe
PID 2128 wrote to memory of 2580	2128	4594a8618274c5732c58bcb6f246919a.exe	4594a8618274c5732c58bcb6f246919a.exe
PID 2128 wrote to memory of 2580	2128	4594a8618274c5732c58bcb6f246919a.exe	4594a8618274c5732c58bcb6f246919a.exe
PID 2128 wrote to memory of 2580	2128	4594a8618274c5732c58bcb6f246919a.exe	4594a8618274c5732c58bcb6f246919a.exe
PID 2128 wrote to memory of 2580	2128	4594a8618274c5732c58bcb6f246919a.exe	4594a8618274c5732c58bcb6f246919a.exe
PID 2128 wrote to memory of 2580	2128	4594a8618274c5732c58bcb6f246919a.exe	4594a8618274c5732c58bcb6f246919a.exe

C:\Users\Admin\AppData\Local\Temp\4594a8618274c5732c58bcb6f246919a.exe
"C:\Users\Admin\AppData\Local\Temp\4594a8618274c5732c58bcb6f246919a.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2128

C:\Users\Admin\AppData\Local\Temp\4594a8618274c5732c58bcb6f246919a.exe
"C:\Users\Admin\AppData\Local\Temp\4594a8618274c5732c58bcb6f246919a.exe"
2⤵
- Adds Run key to start application
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:2580

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Privilege Escalation

Boot or Logon Autostart Execution

Registry Run Keys / Startup Folder

Defense Evasion

Modify Registry

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2128-18-0x0000000074D70000-0x000000007545E000-memory.dmp

Filesize
6.9MB

Download
memory/2128-0-0x0000000000910000-0x0000000000B2A000-memory.dmp

Filesize
2.1MB

Download
memory/2128-2-0x0000000004E50000-0x0000000004E90000-memory.dmp

Filesize
256KB

Download
memory/2128-3-0x0000000000480000-0x0000000000496000-memory.dmp

Filesize
88KB

Download
memory/2128-4-0x0000000074D70000-0x000000007545E000-memory.dmp

Filesize
6.9MB

Download
memory/2128-5-0x0000000004E50000-0x0000000004E90000-memory.dmp

Filesize
256KB

Download
memory/2128-6-0x0000000005D00000-0x0000000005EF0000-memory.dmp

Filesize
1.9MB

Download
memory/2128-7-0x000000000B370000-0x000000000B4E8000-memory.dmp

Filesize
1.5MB

Download
memory/2128-1-0x0000000074D70000-0x000000007545E000-memory.dmp

Filesize
6.9MB

Download
memory/2580-17-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-20-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2580-10-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-16-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-15-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-14-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-9-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-8-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-19-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-21-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-25-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-27-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-23-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-29-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-28-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-30-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2580-31-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download