socks5systemz | d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d

General

Target

d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe
Size

4.2MB
MD5

b8105f6b202aedafe587b0c3c84ee016
SHA1

7480c794f85437c631fbda08b275a39d8e0e0a8a
SHA256

d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d
SHA512

e2bbcd3a8905ccfe4baae6a19417919718109e3f3a404ebcef1f19e95966d324d361da15ed6f57d3e05f8f288aae8ee905e1a5858dd7e2716e72043aef990f85
SSDEEP

98304:IegyX4fas63EDWfQd2z7jjvGi/UzWH/ubqVu9L:3lobfDIjz7mic4/uSo

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2848-105-0x0000000002DA0000-0x0000000002E42000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 2 IoCs

pid	Process
816	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp
2848	ascreenrecorder32.exe

Loads dropped DLL 5 IoCs

pid	Process
2148	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe
816	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp
816	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp
816	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp
816	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp

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	91.211.247.248

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

System Location Discovery: System Language Discovery 1 TTPs 3 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	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ascreenrecorder32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
816	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp
816	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
816	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2148 wrote to memory of 816	2148	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe	30
PID 2148 wrote to memory of 816	2148	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe	30
PID 2148 wrote to memory of 816	2148	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe	30
PID 2148 wrote to memory of 816	2148	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe	30
PID 2148 wrote to memory of 816	2148	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe	30
PID 2148 wrote to memory of 816	2148	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe	30
PID 2148 wrote to memory of 816	2148	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe	30
PID 816 wrote to memory of 2848	816	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp	31
PID 816 wrote to memory of 2848	816	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp	31
PID 816 wrote to memory of 2848	816	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp	31
PID 816 wrote to memory of 2848	816	d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp	31

C:\Users\Admin\AppData\Local\Temp\d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe
"C:\Users\Admin\AppData\Local\Temp\d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2148
- C:\Users\Admin\AppData\Local\Temp\is-GAUKE.tmp\d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-GAUKE.tmp\d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp" /SL5="$30146,4077486,54272,C:\Users\Admin\AppData\Local\Temp\d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:816
- - C:\Users\Admin\AppData\Local\AScreenRecorder\ascreenrecorder32.exe
    "C:\Users\Admin\AppData\Local\AScreenRecorder\ascreenrecorder32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\AScreenRecorder\ascreenrecorder32.exe

Filesize
2.9MB

MD5
a5cf4bd81749cb1f94e662523bf483ac

SHA1
831b286a932281d1680fccf934811d9a0bb6aa76

SHA256
63ddbfdad020e55eae9103d326524cebdb8292a6ce0a3d159b9bbfa1ad19bc17

SHA512
5140294fb0ca4de70974976913c37a7feddcdae305073c54c67f406242dd9f3c7a45b994d99eaaa69222b2a15ef0ba3c1d020c1e53aae5aabda14b2f30066458

Download Submit
\Users\Admin\AppData\Local\Temp\is-GAUKE.tmp\d3e019c718c60120b0e699ef31b4696574109a9a3f6b981fcf049b58e0e1af8d.tmp

Filesize
689KB

MD5
ee9b826befa980f0dc15474da05c152d

SHA1
cc1cb422be02e9eab74df836f64a94fb7e115eb9

SHA256
2961885df7e07aa12df51cd8b9d1e60b78396f58d8aeddcd409f5b152776ec55

SHA512
b08419c343dd1666e58f3d9669e65ae6f7871a24dabbc343a0fde7b37ec68a59522647ea9175ef44a2243764cc1936680610babc0ee4f1678606a4e86f11118e

Download Submit
\Users\Admin\AppData\Local\Temp\is-OT1MJ.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-OT1MJ.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/816-8-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/816-112-0x0000000003890000-0x0000000003B83000-memory.dmp

Filesize
2.9MB

Download
memory/816-81-0x0000000003890000-0x0000000003B83000-memory.dmp

Filesize
2.9MB

Download
memory/816-86-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2148-87-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2148-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2148-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2848-95-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-82-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-92-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-83-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-98-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-101-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-104-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-105-0x0000000002DA0000-0x0000000002E42000-memory.dmp

Filesize
648KB

Download
memory/2848-111-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-89-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-115-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-118-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-121-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-124-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-127-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-131-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2848-134-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing