bruteratel | fe207bdb0a1d13a8294f4ee0ac2e93ffed1186ab861dd135df4225cca5db7498

Analysis

max time kernel
150s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
12-12-2024 20:54

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General

Target

e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe
Size

73KB
MD5

e83ce979dc55bbf9380b7d6a5bc49749
SHA1

4f9d3e5e4b668bfc59bc7c715ed64542e3c18e64
SHA256

fe207bdb0a1d13a8294f4ee0ac2e93ffed1186ab861dd135df4225cca5db7498
SHA512

9c94d8a824702f2ac528f4d18392f96d541c4a0136761fea0c20aa7261ecc871e69888e78b9ed8da4c8dd6e217eae09f66a10be6c9ae637cec2b3e9d84a9310c
SSDEEP

768:eiJ/A2/85QjMpPFtkoVDU6BOcJ/eEGEs1POLUTeNJxyuEMqPZaKpid3b/Xs7ajZL:eiJ/hcJ9GEzUyNJxfEMqPZe3TsC3B

Score

10^/10

bruteratel backdoor discovery evasion persistence trojan

Malware Config

Signatures

Brute Ratel C4
A customized command and control framework for red teaming and adversary simulation.
backdoor bruteratel
Bruteratel family
bruteratel

Detect BruteRatel badger 3 IoCs

resource	yara_rule
behavioral2/memory/4664-13-0x000000007FBA0000-0x000000007FBA7000-memory.dmp	family_bruteratel
behavioral2/memory/4664-15-0x000000007FBA0000-0x000000007FBA7000-memory.dmp	family_bruteratel
behavioral2/memory/4664-26-0x000000007FBA0000-0x000000007FBA7000-memory.dmp	family_bruteratel

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	msiexec.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\65220 = "c:\\progra~3\\msfwrb.exe"	msiexec.exe

Disables taskbar notifications via registry modification
evasion

Deletes itself 1 IoCs

pid	Process
4664	msiexec.exe

Blocklisted process makes network request 6 IoCs

flow	pid	Process
6	4664	msiexec.exe
12	4664	msiexec.exe
41	4664	msiexec.exe
42	4664	msiexec.exe
50	4664	msiexec.exe
51	4664	msiexec.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\disk\enum	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3420 set thread context of 624	3420	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe	82

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	\??\c:\progra~3\msfwrb.exe	msiexec.exe

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	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
624	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe
624	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe
624	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe
624	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe

Suspicious behavior: MapViewOfSection 64 IoCs

pid	Process
624	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe
624	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe
4664	msiexec.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4664	msiexec.exe
Token: SeBackupPrivilege	4664	msiexec.exe
Token: SeRestorePrivilege	4664	msiexec.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3420	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 3420 wrote to memory of 624	3420	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe	82
PID 3420 wrote to memory of 624	3420	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe	82
PID 3420 wrote to memory of 624	3420	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe	82
PID 3420 wrote to memory of 624	3420	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe	82
PID 3420 wrote to memory of 624	3420	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe	82
PID 3420 wrote to memory of 624	3420	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe	82
PID 3420 wrote to memory of 624	3420	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe	82
PID 624 wrote to memory of 4664	624	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe	83
PID 624 wrote to memory of 4664	624	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe	83
PID 624 wrote to memory of 4664	624	e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe	83
PID 4664 wrote to memory of 1896	4664	msiexec.exe	84
PID 4664 wrote to memory of 1896	4664	msiexec.exe	84
PID 4664 wrote to memory of 1896	4664	msiexec.exe	84

C:\Users\Admin\AppData\Local\Temp\e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3420
- C:\Users\Admin\AppData\Local\Temp\e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\e83ce979dc55bbf9380b7d6a5bc49749_JaffaCakes118.exe"
  2⤵
  - Maps connected drives based on registry
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:624
- - C:\Windows\SysWOW64\msiexec.exe
    C:\Windows\SysWOW64\msiexec.exe
    3⤵
    - UAC bypass
    - Adds policy Run key to start application
    - Deletes itself
    - Blocklisted process makes network request
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:4664
  - - C:\Windows\SysWOW64\msiexec.exe
      "C:\Windows\SysWOW64\msiexec.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:1896

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Modify Registry

T1112

Credential Access

Discovery

Peripheral Device Discovery

T1120

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\??\c:\progra~3\msfwrb.exe

Filesize
73KB

MD5
e83ce979dc55bbf9380b7d6a5bc49749

SHA1
4f9d3e5e4b668bfc59bc7c715ed64542e3c18e64

SHA256
fe207bdb0a1d13a8294f4ee0ac2e93ffed1186ab861dd135df4225cca5db7498

SHA512
9c94d8a824702f2ac528f4d18392f96d541c4a0136761fea0c20aa7261ecc871e69888e78b9ed8da4c8dd6e217eae09f66a10be6c9ae637cec2b3e9d84a9310c

Download Submit
memory/624-4-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/624-5-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/624-2-0x0000000000400000-0x0000000000407000-memory.dmp

Filesize
28KB

Download
memory/1896-22-0x0000000000510000-0x0000000000511000-memory.dmp

Filesize
4KB

Download
memory/4664-8-0x0000000000B70000-0x0000000000B82000-memory.dmp

Filesize
72KB

Download
memory/4664-13-0x000000007FBA0000-0x000000007FBA7000-memory.dmp

Filesize
28KB

Download
memory/4664-14-0x000000007FB90000-0x000000007FB91000-memory.dmp

Filesize
4KB

Download
memory/4664-15-0x000000007FBA0000-0x000000007FBA7000-memory.dmp

Filesize
28KB

Download
memory/4664-12-0x0000000000B70000-0x0000000000B82000-memory.dmp

Filesize
72KB

Download
memory/4664-10-0x0000000000B70000-0x0000000000B82000-memory.dmp

Filesize
72KB

Download
memory/4664-26-0x000000007FBA0000-0x000000007FBA7000-memory.dmp

Filesize
28KB

Download
memory/4664-31-0x0000000000830000-0x0000000000837000-memory.dmp

Filesize
28KB

Download