bitrat | 91a3c004d88d116d189b401b53d5d99cb4296a026c26619418d4a5aeb4791f65

General

Target

DOCUMENTO PARA AUTORIZAR.exe
Size

3.9MB
MD5

20488b3900a42a7bbdd61f3a19e369a1
SHA1

d5d9140b955120dcbb3e8af34b568330afa1ac4c
SHA256

91a3c004d88d116d189b401b53d5d99cb4296a026c26619418d4a5aeb4791f65
SHA512

530305af3380f8842a28b18d6bbc37a31c0c176047c498ea7de2c59585ee8b6ec9fe9d005f2ef0eeade329e7020c87445491b6d948db08e9412f0841f7f99393

Score

10^/10

bitrat persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

uwegcujwhbc.con-ip.com:1880

Attributes

communication_password
202cb962ac59075b964b07152d234b70
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 6 IoCs

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

upx

Processes:

resource	yara_rule
behavioral2/memory/4772-144-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4772-145-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4772-146-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4772-147-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4772-148-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral2/memory/4772-151-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

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:

DOCUMENTO PARA AUTORIZAR.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation	DOCUMENTO PARA AUTORIZAR.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

DOCUMENTO PARA AUTORIZAR.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ggbkkybr = "\"C:\\Users\\Admin\\AppData\\Roaming\\Nqxhjok\\Ggbkkybr.exe\""	DOCUMENTO PARA AUTORIZAR.exe

Drops file in System32 directory 2 IoCs

Processes:

svchost.exe

description	ioc	process
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{B3DA3B88-3E8F-497B-AD85-8676DD972605}.catalogItem	svchost.exe
File created	C:\Windows\system32\config\systemprofile\AppData\Local\Microsoft\InstallService\{DB60DD93-8175-4E5E-A642-5AB99A3A480A}.catalogItem	svchost.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs

Processes:

InstallUtil.exe

pid process

4772 InstallUtil.exe
4772 InstallUtil.exe
4772 InstallUtil.exe
4772 InstallUtil.exe
4772 InstallUtil.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

DOCUMENTO PARA AUTORIZAR.exe

description pid process target process

PID 2228 set thread context of 4772 2228 DOCUMENTO PARA AUTORIZAR.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

pid	process
4772	InstallUtil.exe
4772	InstallUtil.exe
4772	InstallUtil.exe
4772	InstallUtil.exe
4772	InstallUtil.exe

description	pid	process	target process
PID 2228 set thread context of 4772	2228	DOCUMENTO PARA AUTORIZAR.exe	InstallUtil.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	svchost.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	svchost.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

svchost.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	svchost.exe
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	svchost.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exeDOCUMENTO PARA AUTORIZAR.exe

pid	process
2424	powershell.exe
2424	powershell.exe
2228	DOCUMENTO PARA AUTORIZAR.exe
2228	DOCUMENTO PARA AUTORIZAR.exe
2228	DOCUMENTO PARA AUTORIZAR.exe
2228	DOCUMENTO PARA AUTORIZAR.exe
2228	DOCUMENTO PARA AUTORIZAR.exe
2228	DOCUMENTO PARA AUTORIZAR.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

DOCUMENTO PARA AUTORIZAR.exepowershell.exeInstallUtil.exe

description	pid	process
Token: SeDebugPrivilege	2228	DOCUMENTO PARA AUTORIZAR.exe
Token: SeDebugPrivilege	2424	powershell.exe
Token: SeShutdownPrivilege	4772	InstallUtil.exe

Suspicious use of SetWindowsHookEx 2 IoCs

Processes:

InstallUtil.exe

pid process

4772 InstallUtil.exe
4772 InstallUtil.exe

pid	process
4772	InstallUtil.exe
4772	InstallUtil.exe

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

DOCUMENTO PARA AUTORIZAR.exe

description	pid	process	target process
PID 2228 wrote to memory of 2424	2228	DOCUMENTO PARA AUTORIZAR.exe	powershell.exe
PID 2228 wrote to memory of 2424	2228	DOCUMENTO PARA AUTORIZAR.exe	powershell.exe
PID 2228 wrote to memory of 2424	2228	DOCUMENTO PARA AUTORIZAR.exe	powershell.exe
PID 2228 wrote to memory of 4744	2228	DOCUMENTO PARA AUTORIZAR.exe	InstallUtil.exe
PID 2228 wrote to memory of 4744	2228	DOCUMENTO PARA AUTORIZAR.exe	InstallUtil.exe
PID 2228 wrote to memory of 4744	2228	DOCUMENTO PARA AUTORIZAR.exe	InstallUtil.exe
PID 2228 wrote to memory of 4772	2228	DOCUMENTO PARA AUTORIZAR.exe	InstallUtil.exe
PID 2228 wrote to memory of 4772	2228	DOCUMENTO PARA AUTORIZAR.exe	InstallUtil.exe
PID 2228 wrote to memory of 4772	2228	DOCUMENTO PARA AUTORIZAR.exe	InstallUtil.exe
PID 2228 wrote to memory of 4772	2228	DOCUMENTO PARA AUTORIZAR.exe	InstallUtil.exe
PID 2228 wrote to memory of 4772	2228	DOCUMENTO PARA AUTORIZAR.exe	InstallUtil.exe
PID 2228 wrote to memory of 4772	2228	DOCUMENTO PARA AUTORIZAR.exe	InstallUtil.exe
PID 2228 wrote to memory of 4772	2228	DOCUMENTO PARA AUTORIZAR.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\DOCUMENTO PARA AUTORIZAR.exe
"C:\Users\Admin\AppData\Local\Temp\DOCUMENTO PARA AUTORIZAR.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:2228

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:2424

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
PID:4744

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4772

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k netsvcs -p
1⤵
- Drops file in System32 directory
- Checks processor information in registry
- Enumerates system info in registry
PID:3632

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

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2228-132-0x0000000000F70000-0x000000000135A000-memory.dmp

Filesize
3.9MB

Download
memory/2228-133-0x00000000060A0000-0x00000000060C2000-memory.dmp

Filesize
136KB

Download
memory/2424-134-0x0000000000000000-mapping.dmp

Download
memory/2424-135-0x0000000002480000-0x00000000024B6000-memory.dmp

Filesize
216KB

Download
memory/2424-136-0x0000000004D60000-0x0000000005388000-memory.dmp

Filesize
6.2MB

Download
memory/2424-137-0x0000000004CA0000-0x0000000004D06000-memory.dmp

Filesize
408KB

Download
memory/2424-138-0x0000000005400000-0x0000000005466000-memory.dmp

Filesize
408KB

Download
memory/2424-139-0x0000000005A50000-0x0000000005A6E000-memory.dmp

Filesize
120KB

Download
memory/2424-140-0x00000000070E0000-0x000000000775A000-memory.dmp

Filesize
6.5MB

Download
memory/2424-141-0x0000000005F40000-0x0000000005F5A000-memory.dmp

Filesize
104KB

Download
memory/4744-142-0x0000000000000000-mapping.dmp

Download
memory/4772-143-0x0000000000000000-mapping.dmp

Download
memory/4772-144-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/4772-145-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/4772-146-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/4772-147-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/4772-148-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/4772-149-0x0000000074620000-0x0000000074659000-memory.dmp

Filesize
228KB

Download
memory/4772-150-0x00000000749A0000-0x00000000749D9000-memory.dmp

Filesize
228KB

Download
memory/4772-151-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/4772-152-0x0000000074620000-0x0000000074659000-memory.dmp

Filesize
228KB

Download
memory/4772-153-0x00000000749A0000-0x00000000749D9000-memory.dmp

Filesize
228KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads