bitrat | 9afa8ea8064c15e349caad45d31c18c41349080c4ed1d35fdd3472659736a19b

General

Target

August PO#17526NR2600.exe
Size

463KB
MD5

a59cd30ab95f36253b463cd3ee7b9bbc
SHA1

3db7af3754a358220e1f9d83a97f3846f57e6ace
SHA256

9afa8ea8064c15e349caad45d31c18c41349080c4ed1d35fdd3472659736a19b
SHA512

fa649e81dd7dca0e1937b0c22ffe1a881c3b95160fbe3e272bc89ebabf75632c9d6e2597b9b71db3b7f2fff4a71ea080992aa25c4d80164ed7771a464609a0f7

Score

10^/10

bitrat persistence trojan

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

103.153.79.240:1234

Attributes

communication_password
e10adc3949ba59abbe56e057f20f883e
tor_process
tor

Signatures

BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
trojan bitrat
Downloads MZ/PE file
Executes dropped EXE 1 IoCs

Processes:

NR8AVYRAsVqRNG4G.exe

pid process

3708 NR8AVYRAsVqRNG4G.exe

pid	process
3708	NR8AVYRAsVqRNG4G.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

August PO#17526NR2600.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	August PO#17526NR2600.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

August PO#17526NR2600.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Khzttr = "\"C:\\Users\\Admin\\AppData\\Roaming\\Btfke\\Khzttr.exe\""	August PO#17526NR2600.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

Processes:

NR8AVYRAsVqRNG4G.exe

pid process

3708 NR8AVYRAsVqRNG4G.exe
3708 NR8AVYRAsVqRNG4G.exe
3708 NR8AVYRAsVqRNG4G.exe
3708 NR8AVYRAsVqRNG4G.exe
3708 NR8AVYRAsVqRNG4G.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

August PO#17526NR2600.exe

description pid process target process

PID 3568 set thread context of 8 3568 August PO#17526NR2600.exe InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exeAugust PO#17526NR2600.exe

pid process

908 powershell.exe
908 powershell.exe
3568 August PO#17526NR2600.exe
3568 August PO#17526NR2600.exe

pid	process
3708	NR8AVYRAsVqRNG4G.exe
3708	NR8AVYRAsVqRNG4G.exe
3708	NR8AVYRAsVqRNG4G.exe
3708	NR8AVYRAsVqRNG4G.exe
3708	NR8AVYRAsVqRNG4G.exe

description	pid	process	target process
PID 3568 set thread context of 8	3568	August PO#17526NR2600.exe	InstallUtil.exe

pid	process
908	powershell.exe
908	powershell.exe
3568	August PO#17526NR2600.exe
3568	August PO#17526NR2600.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

powershell.exeAugust PO#17526NR2600.exeNR8AVYRAsVqRNG4G.exe

description	pid	process
Token: SeDebugPrivilege	908	powershell.exe
Token: SeDebugPrivilege	3568	August PO#17526NR2600.exe
Token: SeShutdownPrivilege	3708	NR8AVYRAsVqRNG4G.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

NR8AVYRAsVqRNG4G.exe

pid process

3708 NR8AVYRAsVqRNG4G.exe
3708 NR8AVYRAsVqRNG4G.exe

pid	process
3708	NR8AVYRAsVqRNG4G.exe
3708	NR8AVYRAsVqRNG4G.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

August PO#17526NR2600.exeInstallUtil.exe

description	pid	process	target process
PID 3568 wrote to memory of 908	3568	August PO#17526NR2600.exe	powershell.exe
PID 3568 wrote to memory of 908	3568	August PO#17526NR2600.exe	powershell.exe
PID 3568 wrote to memory of 908	3568	August PO#17526NR2600.exe	powershell.exe
PID 3568 wrote to memory of 8	3568	August PO#17526NR2600.exe	InstallUtil.exe
PID 3568 wrote to memory of 8	3568	August PO#17526NR2600.exe	InstallUtil.exe
PID 3568 wrote to memory of 8	3568	August PO#17526NR2600.exe	InstallUtil.exe
PID 3568 wrote to memory of 8	3568	August PO#17526NR2600.exe	InstallUtil.exe
PID 3568 wrote to memory of 8	3568	August PO#17526NR2600.exe	InstallUtil.exe
PID 3568 wrote to memory of 8	3568	August PO#17526NR2600.exe	InstallUtil.exe
PID 3568 wrote to memory of 8	3568	August PO#17526NR2600.exe	InstallUtil.exe
PID 3568 wrote to memory of 8	3568	August PO#17526NR2600.exe	InstallUtil.exe
PID 3568 wrote to memory of 8	3568	August PO#17526NR2600.exe	InstallUtil.exe
PID 3568 wrote to memory of 8	3568	August PO#17526NR2600.exe	InstallUtil.exe
PID 3568 wrote to memory of 8	3568	August PO#17526NR2600.exe	InstallUtil.exe
PID 8 wrote to memory of 3708	8	InstallUtil.exe	NR8AVYRAsVqRNG4G.exe
PID 8 wrote to memory of 3708	8	InstallUtil.exe	NR8AVYRAsVqRNG4G.exe
PID 8 wrote to memory of 3708	8	InstallUtil.exe	NR8AVYRAsVqRNG4G.exe

C:\Users\Admin\AppData\Local\Temp\August PO#17526NR2600.exe
"C:\Users\Admin\AppData\Local\Temp\August PO#17526NR2600.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3568

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:908

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
- Suspicious use of WriteProcessMemory
PID:8

C:\Users\Admin\AppData\Local\Temp\NR8AVYRAsVqRNG4G.exe
"C:\Users\Admin\AppData\Local\Temp\NR8AVYRAsVqRNG4G.exe"
3⤵
- Executes dropped EXE
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3708

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\NR8AVYRAsVqRNG4G.exe
Filesize
3.8MB

MD5
086686330159cbeae2d5c94b25967fa9

SHA1
19f3571b45823fcf1b1c05cdd25f1c98c45c712a

SHA256
f93e5dfa75e3edfabc8bd414b9beaa735ccd8a91b12f9c57bb923aa5c3232e9d

SHA512
9ff98a9211162972fcbb277ce1d5cffea39303a25e7209b8a8a3d7ed0e135630b3dee122323c725022a078c462634b34c82ace4baf3680cedc1865f9c27dbba5

Download Submit
C:\Users\Admin\AppData\Local\Temp\NR8AVYRAsVqRNG4G.exe
Filesize
3.8MB

MD5
086686330159cbeae2d5c94b25967fa9

SHA1
19f3571b45823fcf1b1c05cdd25f1c98c45c712a

SHA256
f93e5dfa75e3edfabc8bd414b9beaa735ccd8a91b12f9c57bb923aa5c3232e9d

SHA512
9ff98a9211162972fcbb277ce1d5cffea39303a25e7209b8a8a3d7ed0e135630b3dee122323c725022a078c462634b34c82ace4baf3680cedc1865f9c27dbba5

Download Submit
memory/8-141-0x0000000000000000-mapping.dmp

Download
memory/8-149-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/8-145-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/8-144-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/8-143-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/8-142-0x0000000000400000-0x000000000043F000-memory.dmp

Filesize
252KB

Download
memory/908-135-0x0000000005470000-0x0000000005A98000-memory.dmp

Filesize
6.2MB

Download
memory/908-134-0x0000000002790000-0x00000000027C6000-memory.dmp

Filesize
216KB

Download
memory/908-140-0x00000000065A0000-0x00000000065BA000-memory.dmp

Filesize
104KB

Download
memory/908-138-0x00000000060B0000-0x00000000060CE000-memory.dmp

Filesize
120KB

Download
memory/908-137-0x0000000005AA0000-0x0000000005B06000-memory.dmp

Filesize
408KB

Download
memory/908-136-0x0000000005200000-0x0000000005266000-memory.dmp

Filesize
408KB

Download
memory/908-133-0x0000000000000000-mapping.dmp

Download
memory/908-139-0x0000000007720000-0x0000000007D9A000-memory.dmp

Filesize
6.5MB

Download
memory/3568-130-0x00000000005C0000-0x000000000063A000-memory.dmp

Filesize
488KB

Download
memory/3568-132-0x0000000005140000-0x0000000005162000-memory.dmp

Filesize
136KB

Download
memory/3568-131-0x00000000056C0000-0x0000000005C64000-memory.dmp

Filesize
5.6MB

Download
memory/3708-146-0x0000000000000000-mapping.dmp

Download
memory/3708-150-0x0000000074F70000-0x0000000074FA9000-memory.dmp

Filesize
228KB

Download
memory/3708-151-0x00000000752F0000-0x0000000075329000-memory.dmp

Filesize
228KB

Download
memory/3708-152-0x00000000752F0000-0x0000000075329000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads