systembc | d7588ed746eb3b1ef4b5ac9507d8e432174eba3b4638df6e1497ed45caecd045

Analysis

max time kernel
145s
max time network
149s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
01-06-2024 11:25

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General

Target

8a53ca14784db0d61dee57dbd1c38e54_JaffaCakes118.exe
Size

178KB
MD5

8a53ca14784db0d61dee57dbd1c38e54
SHA1

a60f41f04529432ae8e4577ba9f13bca904ab4e9
SHA256

d7588ed746eb3b1ef4b5ac9507d8e432174eba3b4638df6e1497ed45caecd045
SHA512

3947f8df002b02e7d5ee9df07d1fd93e7f8bf322d91f99a4069480498d61b3f42718790d7ec93100a29257339d1f9e2d61e0a98740b5a05fa5e994c280b868d8
SSDEEP

3072:M9GNDgwzRzLPTc6RyNRXBNssCCRc4fkxVsPHNw:ow1zLPY6RhCR/kQfq

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

sdadvert197.com:4044

mexstat128.com:4044

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc

Executes dropped EXE 1 IoCs

pid	Process
2576	eleunf.exe

Looks up external IP address via web service 4 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
6	api.ipify.org
7	api.ipify.org
8	ip4.seeip.org
9	ip4.seeip.org

Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Proxy
T1090

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\Tasks\eleunf.job	8a53ca14784db0d61dee57dbd1c38e54_JaffaCakes118.exe
File opened for modification	C:\Windows\Tasks\eleunf.job	8a53ca14784db0d61dee57dbd1c38e54_JaffaCakes118.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2912	8a53ca14784db0d61dee57dbd1c38e54_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2576	2036	taskeng.exe	29
PID 2036 wrote to memory of 2576	2036	taskeng.exe	29
PID 2036 wrote to memory of 2576	2036	taskeng.exe	29
PID 2036 wrote to memory of 2576	2036	taskeng.exe	29

C:\Users\Admin\AppData\Local\Temp\8a53ca14784db0d61dee57dbd1c38e54_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\8a53ca14784db0d61dee57dbd1c38e54_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:2912

C:\Windows\system32\taskeng.exe
taskeng.exe {4D507514-44A5-409E-A578-8C0D60AD61EC} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2036
- C:\ProgramData\bsdle\eleunf.exe
  C:\ProgramData\bsdle\eleunf.exe start
  2⤵
  - Executes dropped EXE
  PID:2576

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Proxy

T1090

Exfiltration

Impact

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Downloads

C:\ProgramData\bsdle\eleunf.exe

Filesize
178KB

MD5
8a53ca14784db0d61dee57dbd1c38e54

SHA1
a60f41f04529432ae8e4577ba9f13bca904ab4e9

SHA256
d7588ed746eb3b1ef4b5ac9507d8e432174eba3b4638df6e1497ed45caecd045

SHA512
3947f8df002b02e7d5ee9df07d1fd93e7f8bf322d91f99a4069480498d61b3f42718790d7ec93100a29257339d1f9e2d61e0a98740b5a05fa5e994c280b868d8

Download Submit
memory/2576-12-0x0000000000400000-0x0000000004DA8000-memory.dmp

Filesize
73.7MB

Download
memory/2912-1-0x0000000004E30000-0x0000000004F30000-memory.dmp

Filesize
1024KB

Download
memory/2912-3-0x0000000000400000-0x000000000040A000-memory.dmp

Filesize
40KB

Download
memory/2912-2-0x0000000000220000-0x0000000000229000-memory.dmp

Filesize
36KB

Download
memory/2912-4-0x0000000000400000-0x0000000004DA8000-memory.dmp

Filesize
73.7MB

Download
memory/2912-13-0x0000000004E30000-0x0000000004F30000-memory.dmp

Filesize
1024KB

Download