systembc | dfe0c8f95bf96e2be4666d73ef9cd166e89eef631e975aa2e384d9f1af901d45

Resubmissions

10/04/2024, 03:05

240410-dld96afg4v10

10/04/2024, 03:04

10/04/2024, 03:04

10/04/2024, 03:04

10/04/2024, 03:04

01/04/2024, 07:13

31/03/2024, 20:35

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
01/04/2024, 07:13

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Report Analysis Logs

General

Target
5d7e265ed53bd43d40f6457318a0921d_JaffaCakes118.exe
Size 209KB
Sample240401-h17mgagf88
SHA256 dfe0c8f95bf96e2be4666d73ef9cd166e89eef631e975aa2e384d9f1af901d45
MD5 5d7e265ed53bd43d40f6457318a0921d
SHA1 08d676809ac123f9a42a7ad4c8b86a3f2237580d
SHA512 3f1c65337295aefff9781e099a7d298f2308f5639ab0fc34cc1e716b68991b6abdac195964083bb7d3bdc36ca25a4652ab482fd943ca1f4190c71222b60d7a43
SSDEEP 6144:YDnLgI91y1UkT57iJz/DpURWPSvHuUiYphu1UW:cnLh9yn52rpUR5vHuRYpM+W
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

systembc trojan upx

Malware Config

Extracted

Family

systembc

yan0212.com:4039
yan0212.net:4039

Signatures

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

Executes dropped EXE 1 IoCs

pid	Process
1504	bkkiclj.exe

UPX packed file 1 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x0004000000022ea3-8.dat	upx

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
29	api.ipify.org
30	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\bkkiclj.job	5d7e265ed53bd43d40f6457318a0921d_JaffaCakes118.exe
File opened for modification	C:\Windows\Tasks\bkkiclj.job	5d7e265ed53bd43d40f6457318a0921d_JaffaCakes118.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1312	4904	WerFault.exe	90

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4904	5d7e265ed53bd43d40f6457318a0921d_JaffaCakes118.exe
4904	5d7e265ed53bd43d40f6457318a0921d_JaffaCakes118.exe

C:\Users\Admin\AppData\Local\Temp\5d7e265ed53bd43d40f6457318a0921d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\5d7e265ed53bd43d40f6457318a0921d_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
PID:4904
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 4904 -s 928
  2⤵
  - Program crash
  PID:1312

C:\ProgramData\qurunrx\bkkiclj.exe
C:\ProgramData\qurunrx\bkkiclj.exe start
1⤵
- Executes dropped EXE
PID:1504

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=4168 --field-trial-handle=2276,i,5697607538120380977,9987005253899555344,262144 --variations-seed-version /prefetch:8
1⤵
PID:4620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 4904 -ip 4904
1⤵
PID:2456

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

bkkiclj.exe

Path C:\ProgramData\qurunrx\bkkiclj.exe
Size 209KB
SHA256 dfe0c8f95bf96e2be4666d73ef9cd166e89eef631e975aa2e384d9f1af901d45
MD5 5d7e265ed53bd43d40f6457318a0921d
SHA1 08d676809ac123f9a42a7ad4c8b86a3f2237580d
SHA512 3f1c65337295aefff9781e099a7d298f2308f5639ab0fc34cc1e716b68991b6abdac195964083bb7d3bdc36ca25a4652ab482fd943ca1f4190c71222b60d7a43
SSDEEP 6144:YDnLgI91y1UkT57iJz/DpURWPSvHuUiYphu1UW:cnLh9yn52rpUR5vHuRYpM+W
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1504-10-0x0000000004700000-0x0000000004800000-memory.dmp

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memory/1504-11-0x00000000001C0000-0x00000000001C9000-memory.dmp

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memory/1504-14-0x0000000000400000-0x00000000045F0000-memory.dmp

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memory/1504-19-0x0000000004700000-0x0000000004800000-memory.dmp

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memory/4904-1-0x00000000046F0000-0x00000000047F0000-memory.dmp

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memory/4904-2-0x00000000001C0000-0x00000000001C9000-memory.dmp

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memory/4904-3-0x0000000000400000-0x00000000045F0000-memory.dmp

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memory/4904-13-0x00000000046F0000-0x00000000047F0000-memory.dmp

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memory/4904-26-0x0000000000400000-0x00000000045F0000-memory.dmp

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