systembc | e86c00bb96428b8c113169da2c996f457ed22467c5ad998e87bb48b65e98ab36

Analysis

max time kernel
142s
max time network
141s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
23-08-2024 08:43

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General

Target

bb0a1a5209fd48e63807b1ba15d6bb69_JaffaCakes118.exe
Size

345KB
MD5

bb0a1a5209fd48e63807b1ba15d6bb69
SHA1

d3170be1c5ae8e2a24cad223c63f382bd796ceb1
SHA256

e86c00bb96428b8c113169da2c996f457ed22467c5ad998e87bb48b65e98ab36
SHA512

d238e9ddece294a5e6edff0fdb372a0433a3bf6f3f64015ac673149a7f59bc3233c1c0874fe5f1387d7a385a52d031e2253e86e58b3384c59f7689d8ac7ea4fd
SSDEEP

6144:aQ6Xl1NFXVdTUMJwA9yLbTMhdbr2X3f+gOkXdhFr:aQwlV8A9yL/iV2XWgO8hFr

Score

10^/10

systembc discovery 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
2696	kndqrhv.exe

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
Destination IP	88.198.207.48

Looks up external IP address via web service 3 IoCs

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

flow	ioc
6	api.ipify.org
7	ip4.seeip.org
5	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\kndqrhv.job	bb0a1a5209fd48e63807b1ba15d6bb69_JaffaCakes118.exe
File opened for modification	C:\Windows\Tasks\kndqrhv.job	bb0a1a5209fd48e63807b1ba15d6bb69_JaffaCakes118.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bb0a1a5209fd48e63807b1ba15d6bb69_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	kndqrhv.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2372	bb0a1a5209fd48e63807b1ba15d6bb69_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2900 wrote to memory of 2696	2900	taskeng.exe	32
PID 2900 wrote to memory of 2696	2900	taskeng.exe	32
PID 2900 wrote to memory of 2696	2900	taskeng.exe	32
PID 2900 wrote to memory of 2696	2900	taskeng.exe	32

C:\Users\Admin\AppData\Local\Temp\bb0a1a5209fd48e63807b1ba15d6bb69_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\bb0a1a5209fd48e63807b1ba15d6bb69_JaffaCakes118.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2372

C:\Windows\system32\taskeng.exe
taskeng.exe {A7A14909-8661-4FDC-A56B-4686459CD812} S-1-5-18:NT AUTHORITY\System:Service:
1⤵
- Suspicious use of WriteProcessMemory
PID:2900
- C:\ProgramData\hthb\kndqrhv.exe
  C:\ProgramData\hthb\kndqrhv.exe start
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2696

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Proxy

T1090

Exfiltration

Impact

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Downloads

C:\ProgramData\hthb\kndqrhv.exe

Filesize
345KB

MD5
bb0a1a5209fd48e63807b1ba15d6bb69

SHA1
d3170be1c5ae8e2a24cad223c63f382bd796ceb1

SHA256
e86c00bb96428b8c113169da2c996f457ed22467c5ad998e87bb48b65e98ab36

SHA512
d238e9ddece294a5e6edff0fdb372a0433a3bf6f3f64015ac673149a7f59bc3233c1c0874fe5f1387d7a385a52d031e2253e86e58b3384c59f7689d8ac7ea4fd

Download Submit
memory/2372-3-0x0000000000400000-0x000000000040B000-memory.dmp

Filesize
44KB

Download
memory/2372-2-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

Download
memory/2372-1-0x0000000000CB0000-0x0000000000DB0000-memory.dmp

Filesize
1024KB

Download
memory/2372-4-0x0000000000CB0000-0x0000000000DB0000-memory.dmp

Filesize
1024KB

Download
memory/2372-6-0x0000000000020000-0x0000000000029000-memory.dmp

Filesize
36KB

Download
memory/2372-5-0x0000000000400000-0x0000000000C34000-memory.dmp

Filesize
8.2MB

Download
memory/2696-13-0x0000000000400000-0x0000000000C34000-memory.dmp

Filesize
8.2MB

Download
memory/2696-14-0x0000000000400000-0x0000000000C34000-memory.dmp

Filesize
8.2MB

Download