bitrat | a713e82b257e6893260e4a0a2abf2f87c50ad92375252d695423f3f21cb02020

General

Target

9aab20d98851ad1551512cfa4a451919_JaffaCakes118.exe
Size

4.4MB
MD5

9aab20d98851ad1551512cfa4a451919
SHA1

b8b8e9b0b4003543519c5eb793d75d6b43d87e68
SHA256

a713e82b257e6893260e4a0a2abf2f87c50ad92375252d695423f3f21cb02020
SHA512

067700259fabcf353f73b872250a7ddb3f4e5e61e1c7df2b32603443c940032934a2ff881b894a9dc24d6e125f70ed712b1e4bb40d4c9d8682a7518f69b3e6e8
SSDEEP

98304:LbVzn8w6ASFT/ONlEJZU2iNXs2ywzJSZVFMetAPu2rWMqktOJbcYGN:LRFSVKEJZUpNXSwg1tAPu2li1cYi

Score

10^/10

bitrat discovery trojan

Malware Config

Extracted

Family

bitrat

Version

1.34

C2

194.5.98.37:4898

Attributes

communication_password
f830115cf81c3c3986d8ea87902cea65
tor_process
tor

Signatures

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

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	9aab20d98851ad1551512cfa4a451919_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
1608	Runtime Broker.exe
4568	Runtime Broker.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 4 IoCs

pid	Process
4804	RegAsm.exe
4804	RegAsm.exe
4804	RegAsm.exe
4804	RegAsm.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 1608 set thread context of 4568	1608	Runtime Broker.exe	108
PID 4568 set thread context of 4804	4568	Runtime Broker.exe	112

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9aab20d98851ad1551512cfa4a451919_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Runtime Broker.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Runtime Broker.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeShutdownPrivilege	4804	RegAsm.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4804	RegAsm.exe
4804	RegAsm.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 404 wrote to memory of 1608	404	9aab20d98851ad1551512cfa4a451919_JaffaCakes118.exe	86
PID 404 wrote to memory of 1608	404	9aab20d98851ad1551512cfa4a451919_JaffaCakes118.exe	86
PID 404 wrote to memory of 1608	404	9aab20d98851ad1551512cfa4a451919_JaffaCakes118.exe	86
PID 1608 wrote to memory of 4568	1608	Runtime Broker.exe	108
PID 1608 wrote to memory of 4568	1608	Runtime Broker.exe	108
PID 1608 wrote to memory of 4568	1608	Runtime Broker.exe	108
PID 1608 wrote to memory of 4568	1608	Runtime Broker.exe	108
PID 1608 wrote to memory of 4568	1608	Runtime Broker.exe	108
PID 1608 wrote to memory of 4568	1608	Runtime Broker.exe	108
PID 1608 wrote to memory of 4568	1608	Runtime Broker.exe	108
PID 1608 wrote to memory of 4568	1608	Runtime Broker.exe	108
PID 4568 wrote to memory of 4804	4568	Runtime Broker.exe	112
PID 4568 wrote to memory of 4804	4568	Runtime Broker.exe	112
PID 4568 wrote to memory of 4804	4568	Runtime Broker.exe	112
PID 4568 wrote to memory of 4804	4568	Runtime Broker.exe	112
PID 4568 wrote to memory of 4804	4568	Runtime Broker.exe	112
PID 4568 wrote to memory of 4804	4568	Runtime Broker.exe	112
PID 4568 wrote to memory of 4804	4568	Runtime Broker.exe	112
PID 4568 wrote to memory of 4804	4568	Runtime Broker.exe	112
PID 4568 wrote to memory of 4804	4568	Runtime Broker.exe	112
PID 4568 wrote to memory of 4804	4568	Runtime Broker.exe	112
PID 4568 wrote to memory of 4804	4568	Runtime Broker.exe	112

C:\Users\Admin\AppData\Local\Temp\9aab20d98851ad1551512cfa4a451919_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\9aab20d98851ad1551512cfa4a451919_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:404
- C:\Users\Admin\AppData\Local\Temp\RarSFX0\Runtime Broker.exe
  "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Runtime Broker.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1608
- - C:\Users\Admin\AppData\Local\Temp\RarSFX0\Runtime Broker.exe
    "C:\Users\Admin\AppData\Local\Temp\RarSFX0\Runtime Broker.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4568
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      Suspicious use of NtSetInformationThreadHideFromDebugger
      System Location Discovery: System Language Discovery
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of SetWindowsHookEx
      PID:4804

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Runtime Broker.exe.log

Filesize
1KB

MD5
17573558c4e714f606f997e5157afaac

SHA1
13e16e9415ceef429aaf124139671ebeca09ed23

SHA256
c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

SHA512
f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

Download Submit
C:\Users\Admin\AppData\Local\Temp\RarSFX0\Runtime Broker.exe

Filesize
4.5MB

MD5
be7631a548ea45c58e25d9c3983bb103

SHA1
16910a73765ae752e4438975ef621a7f34c6313e

SHA256
fbfa16c8f31897ceefddab7d738fd1596028ce0fa3218f5c5c42d1c19469d90e

SHA512
0cd1614999964d76681635db5f276b6dceb3b8a3b1005e3095de450cdc0cf471fc7097476ddd89d2ba9783f911b9c5cb4fa36050eccd0924a0d1dc08a523fdd2

Download Submit
memory/1608-18-0x0000000072900000-0x00000000730B0000-memory.dmp

Filesize
7.7MB

Download
memory/1608-17-0x0000000002CA0000-0x0000000002CAA000-memory.dmp

Filesize
40KB

Download
memory/1608-29-0x0000000072900000-0x00000000730B0000-memory.dmp

Filesize
7.7MB

Download
memory/1608-16-0x0000000007960000-0x00000000079F2000-memory.dmp

Filesize
584KB

Download
memory/1608-14-0x0000000007820000-0x00000000078BC000-memory.dmp

Filesize
624KB

Download
memory/1608-13-0x0000000000540000-0x00000000009CC000-memory.dmp

Filesize
4.5MB

Download
memory/1608-19-0x0000000007B00000-0x0000000007B56000-memory.dmp

Filesize
344KB

Download
memory/1608-20-0x0000000007C90000-0x0000000007C9A000-memory.dmp

Filesize
40KB

Download
memory/1608-21-0x000000007290E000-0x000000007290F000-memory.dmp

Filesize
4KB

Download
memory/1608-22-0x0000000072900000-0x00000000730B0000-memory.dmp

Filesize
7.7MB

Download
memory/1608-23-0x000000000AF50000-0x000000000B346000-memory.dmp

Filesize
4.0MB

Download
memory/1608-15-0x0000000007E70000-0x0000000008414000-memory.dmp

Filesize
5.6MB

Download
memory/1608-12-0x000000007290E000-0x000000007290F000-memory.dmp

Filesize
4KB

Download
memory/4568-24-0x0000000000400000-0x00000000007CC000-memory.dmp

Filesize
3.8MB

Download
memory/4568-39-0x0000000072900000-0x00000000730B0000-memory.dmp

Filesize
7.7MB

Download
memory/4568-31-0x0000000072900000-0x00000000730B0000-memory.dmp

Filesize
7.7MB

Download
memory/4568-30-0x00000000059B0000-0x0000000005A26000-memory.dmp

Filesize
472KB

Download
memory/4568-28-0x0000000072900000-0x00000000730B0000-memory.dmp

Filesize
7.7MB

Download
memory/4568-33-0x0000000006190000-0x000000000655C000-memory.dmp

Filesize
3.8MB

Download
memory/4568-34-0x00000000057E0000-0x00000000057FE000-memory.dmp

Filesize
120KB

Download
memory/4568-32-0x0000000072900000-0x00000000730B0000-memory.dmp

Filesize
7.7MB

Download
memory/4804-38-0x0000000000400000-0x00000000007CD000-memory.dmp

Filesize
3.8MB

Download
memory/4804-35-0x0000000000400000-0x00000000007CD000-memory.dmp

Filesize
3.8MB

Download
memory/4804-36-0x0000000000400000-0x00000000007CD000-memory.dmp

Filesize
3.8MB

Download
memory/4804-40-0x0000000000400000-0x00000000007CD000-memory.dmp

Filesize
3.8MB

Download
memory/4804-41-0x0000000074DA0000-0x0000000074DD9000-memory.dmp

Filesize
228KB

Download
memory/4804-42-0x0000000000400000-0x00000000007CD000-memory.dmp

Filesize
3.8MB

Download
memory/4804-48-0x0000000000400000-0x00000000007CD000-memory.dmp

Filesize
3.8MB

Download
memory/4804-49-0x00000000746D0000-0x0000000074709000-memory.dmp

Filesize
228KB

Download

Analysis

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