bruteratel | f8e3eef1fda5969a7aabcc8fb5cc9f5fe245bbf6cc8e480459977b8e91eab9bd

General

Target

f8e3eef1fda5969a7aabcc8fb5cc9f5fe245bbf6cc8e480459977b8e91eab9bd.dll
Size

1.6MB
MD5

86b57c9deafed093d4b47b03823b4d14
SHA1

47947da463dd6f4ecf61ae960235a35144e903a8
SHA256

f8e3eef1fda5969a7aabcc8fb5cc9f5fe245bbf6cc8e480459977b8e91eab9bd
SHA512

5f855ed0a3ecf561c45608d7f4579d6e4b1f1953863e97e0b5fea1f33b38d0e03fef16207d88864d2d936a4e65b677cd259ec248dbf06447b50f9e0488acead3
SSDEEP

24576:M7u7nB/DBD9accSqVO9y/QaDC4F3Zuk5UDJjbDE2W4VO8I/nYY:My/DBD9MVO9yosHF395UlbDBw82nB

Score

10^/10

bruteratel latrodectus backdoor loader

Malware Config

Extracted

Family

latrodectus

C2

https://rolefenik.com/test/

https://ergiholim.com/test/

Signatures

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

Detect BruteRatel badger 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1236-8-0x00000000001B0000-0x00000000001EE000-memory.dmp	family_bruteratel

Detects Latrodectus 4 IoCs

Detects Latrodectus v1.4.

Processes:

resource	yara_rule
behavioral1/memory/1236-26-0x000007FFFFF80000-0x000007FFFFF95000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/1364-34-0x0000000002200000-0x0000000002215000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/1364-33-0x0000000002200000-0x0000000002215000-memory.dmp	family_latrodectus_1_4
behavioral1/memory/1364-35-0x0000000002200000-0x0000000002215000-memory.dmp	family_latrodectus_1_4

Latrodectus family
latrodectus
Latrodectus loader
Latrodectus is a loader written in C++.
loader latrodectus
Blocklisted process makes network request 7 IoCs

Processes:

rundll32.exe

flow pid process

6 1236 rundll32.exe
8 1236 rundll32.exe
10 1236 rundll32.exe
11 1236 rundll32.exe
18 1236 rundll32.exe
20 1236 rundll32.exe
22 1236 rundll32.exe

flow	pid	process
6	1236	rundll32.exe
8	1236	rundll32.exe
10	1236	rundll32.exe
11	1236	rundll32.exe
18	1236	rundll32.exe
20	1236	rundll32.exe
22	1236	rundll32.exe

Modifies system certificate store 2 TTPs 2 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8	rundll32.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\ROOT\Certificates\CABD2A79A1076A31F21D253635CB039D4329A5E8\Blob = 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	rundll32.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

rundll32.exe

pid process

1236 rundll32.exe
1236 rundll32.exe
1236 rundll32.exe
1236 rundll32.exe
Suspicious use of WriteProcessMemory 1 IoCs

Processes:

rundll32.exe

description pid process target process

PID 1236 wrote to memory of 1364 1236 rundll32.exe Explorer.EXE

pid	process
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe
1236	rundll32.exe

description	pid	process	target process
PID 1236 wrote to memory of 1364	1236	rundll32.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1364
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f8e3eef1fda5969a7aabcc8fb5cc9f5fe245bbf6cc8e480459977b8e91eab9bd.dll,#1
  2⤵
  - Blocklisted process makes network request
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1236-28-0x000007FFFFF60000-0x000007FFFFF61000-memory.dmp

Filesize
4KB

Download
memory/1236-8-0x00000000001B0000-0x00000000001EE000-memory.dmp

Filesize
248KB

Download
memory/1236-10-0x0000000001CE0000-0x0000000001D2C000-memory.dmp

Filesize
304KB

Download
memory/1236-27-0x000007FFFFF70000-0x000007FFFFF71000-memory.dmp

Filesize
4KB

Download
memory/1236-30-0x000007FFFFF40000-0x000007FFFFF41000-memory.dmp

Filesize
4KB

Download
memory/1236-29-0x000007FFFFF50000-0x000007FFFFF51000-memory.dmp

Filesize
4KB

Download
memory/1236-1-0x0000000001CE0000-0x0000000001D2C000-memory.dmp

Filesize
304KB

Download
memory/1236-26-0x000007FFFFF80000-0x000007FFFFF95000-memory.dmp

Filesize
84KB

Download
memory/1236-38-0x0000000001CE0000-0x0000000001D2C000-memory.dmp

Filesize
304KB

Download
memory/1236-25-0x000007FFFFFA0000-0x000007FFFFFA1000-memory.dmp

Filesize
4KB

Download
memory/1364-31-0x0000000002200000-0x0000000002215000-memory.dmp

Filesize
84KB

Download
memory/1364-33-0x0000000002200000-0x0000000002215000-memory.dmp

Filesize
84KB

Download
memory/1364-35-0x0000000002200000-0x0000000002215000-memory.dmp

Filesize
84KB

Download
memory/1364-34-0x0000000002200000-0x0000000002215000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads