systembc | e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e

General

Target

e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e.exe
Size

217KB
MD5

790578f36d82b60747161ce1c95d320f
SHA1

99de20939bb24d34d2274c7e7960a5b610e8e546
SHA256

e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e
SHA512

fc665610b537fd6fa30debaa3e821ca50edcc89e03a120163f0f9160cf5e36d64a4aefe19d6577c1396c78e2cf5327f2f853b06a1b82314e1e9904f1e06be1d7

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

C2

asdasd05.com:4035

asdasd05.xyz:4035

Signatures

SystemBC
SystemBC is a proxy and remote administration tool first seen in 2019.
trojan systembc
Executes dropped EXE 1 IoCs

Processes:

gpshkdg.exe

pid process

1216 gpshkdg.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.

Processes:

flow ioc

5 api.ipify.org
6 api.ipify.org
7 ip4.seeip.org
8 ip4.seeip.org
Uses Tor communications 1 TTPs
Malware can proxy its traffic through Tor for more anonymity.

Connection Proxy
T1090

pid	process
1216	gpshkdg.exe

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

Drops file in Windows directory 2 IoCs

Processes:

e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e.exe

description	ioc	process
File created	C:\Windows\Tasks\gpshkdg.job	e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e.exe
File opened for modification	C:\Windows\Tasks\gpshkdg.job	e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e.exe

pid process

1980 e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e.exe

pid	process
1980	e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

taskeng.exe

description	pid	process	target process
PID 1328 wrote to memory of 1216	1328	taskeng.exe	gpshkdg.exe
PID 1328 wrote to memory of 1216	1328	taskeng.exe	gpshkdg.exe
PID 1328 wrote to memory of 1216	1328	taskeng.exe	gpshkdg.exe
PID 1328 wrote to memory of 1216	1328	taskeng.exe	gpshkdg.exe

C:\Users\Admin\AppData\Local\Temp\e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e.exe
"C:\Users\Admin\AppData\Local\Temp\e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:1980

C:\Windows\system32\taskeng.exe
taskeng.exe {99DBD146-ECF4-4F4E-BA98-38228E1C5097} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:1328

C:\ProgramData\hbukj\gpshkdg.exe
C:\ProgramData\hbukj\gpshkdg.exe start
2⤵
- Executes dropped EXE
PID:1216

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Connection Proxy

1

T1090

Impact

Replay Monitor

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Downloads

C:\ProgramData\hbukj\gpshkdg.exe
Filesize
217KB

MD5
790578f36d82b60747161ce1c95d320f

SHA1
99de20939bb24d34d2274c7e7960a5b610e8e546

SHA256
e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e

SHA512
fc665610b537fd6fa30debaa3e821ca50edcc89e03a120163f0f9160cf5e36d64a4aefe19d6577c1396c78e2cf5327f2f853b06a1b82314e1e9904f1e06be1d7

Download Submit
C:\ProgramData\hbukj\gpshkdg.exe
Filesize
217KB

MD5
790578f36d82b60747161ce1c95d320f

SHA1
99de20939bb24d34d2274c7e7960a5b610e8e546

SHA256
e7f4d680ea1ce138f3d3362a7bb03e1b1e692e4c44328d24d668e5dca24d6d9e

SHA512
fc665610b537fd6fa30debaa3e821ca50edcc89e03a120163f0f9160cf5e36d64a4aefe19d6577c1396c78e2cf5327f2f853b06a1b82314e1e9904f1e06be1d7

Download Submit
memory/1216-59-0x0000000000000000-mapping.dmp

Download
memory/1216-62-0x0000000000DFA000-0x0000000000E00000-memory.dmp

Filesize
24KB

Download
memory/1216-63-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

Download
memory/1216-64-0x0000000000400000-0x0000000000C11000-memory.dmp

Filesize
8.1MB

Download
memory/1980-54-0x00000000756A1000-0x00000000756A3000-memory.dmp

Filesize
8KB

Download
memory/1980-56-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

Download
memory/1980-55-0x0000000000D1A000-0x0000000000D20000-memory.dmp

Filesize
24KB

Download
memory/1980-57-0x0000000000400000-0x0000000000C11000-memory.dmp

Filesize
8.1MB

Download

Analysis

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