systembc | c08ae3fc4f7db6848f829eb7548530e2522ee3eb60a57b2c38cd1bdc862f5d6f

Resubmissions

18-04-2024 05:27

240418-f5tv3acd72 10

18-04-2024 05:27

18-04-2024 05:27

18-04-2024 05:27

18-04-2024 05:27

Analysis

max time kernel
302s
max time network
307s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
18-04-2024 05:27

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General

Target

88b7218e0e2ce38dcbb6647aebc1b915.exe
Size

168KB
MD5

88b7218e0e2ce38dcbb6647aebc1b915
SHA1

84359a09ba1025ef5e17521a098aa1a5b27300df
SHA256

c08ae3fc4f7db6848f829eb7548530e2522ee3eb60a57b2c38cd1bdc862f5d6f
SHA512

1976d16421d6085d9588c62712ea31b7bc31abb1f7bf8cae238b700fd5932d0f0aa46675e824201e5a292811c5bd6fe0e91d7b62d39b85e566a45d814255dd66
SSDEEP

3072:GlN7OGtM7vN+Ma/lkphLMzirj6gvzH2Hd81VrX2fMZ:k7OhfCGh4zw1vDE2nB

Score

10^/10

systembc trojan

Malware Config

Extracted

Family

systembc

knock0909.monster:4035

knock0909.xyz:4035

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
5052	dejf.exe

Looks up external IP address via web service 2 IoCs

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

flow	ioc
55	api.ipify.org
56	api.ipify.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\dejf.job	88b7218e0e2ce38dcbb6647aebc1b915.exe
File opened for modification	C:\Windows\Tasks\dejf.job	88b7218e0e2ce38dcbb6647aebc1b915.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3596	4764	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4764	88b7218e0e2ce38dcbb6647aebc1b915.exe
4764	88b7218e0e2ce38dcbb6647aebc1b915.exe

C:\Users\Admin\AppData\Local\Temp\88b7218e0e2ce38dcbb6647aebc1b915.exe
"C:\Users\Admin\AppData\Local\Temp\88b7218e0e2ce38dcbb6647aebc1b915.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:4764
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 480
  2⤵
  - Program crash
  PID:3596

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3700 --field-trial-handle=2656,i,16940681401824032220,151921362336696246,262144 --variations-seed-version /prefetch:8
1⤵
PID:628

C:\ProgramData\mbxreq\dejf.exe
C:\ProgramData\mbxreq\dejf.exe start
1⤵
- Executes dropped EXE
PID:5052

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 4764 -ip 4764
1⤵
PID:3428

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

Replay Monitor

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Downloads

C:\ProgramData\mbxreq\dejf.exe

Filesize
168KB

MD5
88b7218e0e2ce38dcbb6647aebc1b915

SHA1
84359a09ba1025ef5e17521a098aa1a5b27300df

SHA256
c08ae3fc4f7db6848f829eb7548530e2522ee3eb60a57b2c38cd1bdc862f5d6f

SHA512
1976d16421d6085d9588c62712ea31b7bc31abb1f7bf8cae238b700fd5932d0f0aa46675e824201e5a292811c5bd6fe0e91d7b62d39b85e566a45d814255dd66

Download Submit
memory/4764-1-0x0000000006060000-0x0000000006160000-memory.dmp

Filesize
1024KB

Download
memory/4764-2-0x0000000007D10000-0x0000000007D19000-memory.dmp

Filesize
36KB

Download
memory/4764-3-0x0000000000400000-0x0000000005FCC000-memory.dmp

Filesize
91.8MB

Download
memory/4764-10-0x0000000006060000-0x0000000006160000-memory.dmp

Filesize
1024KB

Download
memory/4764-11-0x0000000007D10000-0x0000000007D19000-memory.dmp

Filesize
36KB

Download
memory/5052-16-0x0000000006370000-0x0000000006470000-memory.dmp

Filesize
1024KB

Download
memory/5052-17-0x0000000000400000-0x0000000005FCC000-memory.dmp

Filesize
91.8MB

Download
memory/5052-23-0x0000000006370000-0x0000000006470000-memory.dmp

Filesize
1024KB

Download