bitrat | 3ef6482e94e62b0f674c24b66fed5230b07395929f5fc77708fed0cb536c4a2b

General

Target

6c1a.exe
Size

2.9MB
MD5

2342f3d5723d354f19844400bfc63b8f
SHA1

535009ed27ed4364493cecd0d871c0e45505a21f
SHA256

b88e6baf28fcfa45e9f951160e8dc0b017218171d4c4636fb628136c2bf6c1ac
SHA512

1a0fc9d77d19d5fe1243e348b4a4938518e429ce92f3bbe453a9f0116fc5c21f78df6a7af24419fb45b0f5c322a0bcbf63ec7552758fccc9e92b713b4caee10a
SSDEEP

24576:CaiYyi79nghoOKuvA2lrCuFWzYUKcqLcVFNT7zl3Xr4cqtBCGMUSDqH5uVBDcwDM:Qoig3DFHWfypES55XtB5Yg8KdaO

Score

10^/10

bitrat discovery persistence trojan upx

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

62.210.11.126:9024

Attributes

communication_password
57e9678c1972887ccb37a6296021d65d
tor_process
tor

Signatures

BitRAT
BitRAT is a remote access tool written in C++ and uses leaked source code from other families.
trojan bitrat
Bitrat family
bitrat

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1874072718-2205492803-118941907-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Ueegwxx = "\"C:\\Users\\Admin\\AppData\\Roaming\\Datx\\Ueegwxx.exe\""	6c1a.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
2424	InstallUtil.exe
2424	InstallUtil.exe
2424	InstallUtil.exe
2424	InstallUtil.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3784 set thread context of 2424	3784	6c1a.exe	89

UPX packed file 16 IoCs

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

upx

resource	yara_rule
behavioral6/memory/2424-10-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-11-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-13-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-15-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-12-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-19-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-25-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-27-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-29-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-28-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-32-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-31-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-35-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-36-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-38-0x0000000000400000-0x00000000007E4000-memory.dmp	upx
behavioral6/memory/2424-39-0x0000000000400000-0x00000000007E4000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	InstallUtil.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	6c1a.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3784	6c1a.exe
Token: SeShutdownPrivilege	2424	InstallUtil.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2424	InstallUtil.exe
2424	InstallUtil.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3784 wrote to memory of 2424	3784	6c1a.exe	89
PID 3784 wrote to memory of 2424	3784	6c1a.exe	89
PID 3784 wrote to memory of 2424	3784	6c1a.exe	89
PID 3784 wrote to memory of 2424	3784	6c1a.exe	89
PID 3784 wrote to memory of 2424	3784	6c1a.exe	89
PID 3784 wrote to memory of 2424	3784	6c1a.exe	89
PID 3784 wrote to memory of 2424	3784	6c1a.exe	89

C:\Users\Admin\AppData\Local\Temp\6c1a.exe
"C:\Users\Admin\AppData\Local\Temp\6c1a.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3784
- 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
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:2424

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2424-31-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-25-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-40-0x00000000751D0000-0x0000000075209000-memory.dmp

Filesize
228KB

Download
memory/2424-39-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-38-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-37-0x00000000751D0000-0x0000000075209000-memory.dmp

Filesize
228KB

Download
memory/2424-36-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-35-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-34-0x0000000074E30000-0x0000000074E69000-memory.dmp

Filesize
228KB

Download
memory/2424-10-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-11-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-13-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-15-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-12-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-33-0x00000000751D0000-0x0000000075209000-memory.dmp

Filesize
228KB

Download
memory/2424-18-0x0000000074E30000-0x0000000074E69000-memory.dmp

Filesize
228KB

Download
memory/2424-32-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-26-0x00000000751D0000-0x0000000075209000-memory.dmp

Filesize
228KB

Download
memory/2424-19-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-27-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-29-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-28-0x0000000000400000-0x00000000007E4000-memory.dmp

Filesize
3.9MB

Download
memory/2424-30-0x00000000751D0000-0x0000000075209000-memory.dmp

Filesize
228KB

Download
memory/3784-1-0x0000000000870000-0x0000000000B60000-memory.dmp

Filesize
2.9MB

Download
memory/3784-0-0x0000000074F2E000-0x0000000074F2F000-memory.dmp

Filesize
4KB

Download
memory/3784-16-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/3784-8-0x0000000006270000-0x00000000065C4000-memory.dmp

Filesize
3.3MB

Download
memory/3784-7-0x00000000059E0000-0x0000000005A02000-memory.dmp

Filesize
136KB

Download
memory/3784-6-0x0000000074F20000-0x00000000756D0000-memory.dmp

Filesize
7.7MB

Download
memory/3784-5-0x00000000060F0000-0x0000000006266000-memory.dmp

Filesize
1.5MB

Download
memory/3784-4-0x00000000057D0000-0x00000000059DC000-memory.dmp

Filesize
2.0MB

Download
memory/3784-3-0x0000000005530000-0x00000000055C2000-memory.dmp

Filesize
584KB

Download
memory/3784-2-0x0000000005A40000-0x0000000005FE4000-memory.dmp

Filesize
5.6MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads