socks5systemz | 1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2ca

General

Target

1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.exe
Size

4.2MB
MD5

520032826525047277dbe788c71522a0
SHA1

464f3a511b62da428fa823f0ea5b162fda063f08
SHA256

1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2ca
SHA512

0255324d69eab8b2b2ae1d44dca60a12bac386cc4c3a931f77a0e187c31772abce983054dbafd57927d7b8d39ba333efe54ffb513b59a66b8ef6efbcdba81af2
SSDEEP

98304:IkOxuz5BpTrVqEpwuA2ONMy1TAWmTnv19ZKH5xQ:xOkzBTr1wuA2OF1TAWWv19kHbQ

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/320-101-0x00000000008A0000-0x0000000000942000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
4284	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.tmp
320	ascreenrecorder32.exe

Loads dropped DLL 1 IoCs

pid	Process
4284	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.tmp

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	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ascreenrecorder32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4284	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.tmp
4284	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4284	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.tmp

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4676 wrote to memory of 4284	4676	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.exe	84
PID 4676 wrote to memory of 4284	4676	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.exe	84
PID 4676 wrote to memory of 4284	4676	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.exe	84
PID 4284 wrote to memory of 320	4284	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.tmp	87
PID 4284 wrote to memory of 320	4284	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.tmp	87
PID 4284 wrote to memory of 320	4284	1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.tmp	87

C:\Users\Admin\AppData\Local\Temp\1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.exe
"C:\Users\Admin\AppData\Local\Temp\1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4676
- C:\Users\Admin\AppData\Local\Temp\is-5MURM.tmp\1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-5MURM.tmp\1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.tmp" /SL5="$601C0,4075624,54272,C:\Users\Admin\AppData\Local\Temp\1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.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:4284
- - 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:320

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

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Downloads

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

Filesize
2.9MB

MD5
238fc4c63ada0c3ab8e0037ec9209792

SHA1
9bffc7f3fc7da93bc5b7e26d5a2216ebbc17ce1a

SHA256
6d12fc8deac20d6b6a08cf2d520f4b0f81313690a4484cc7c47f346f7d5e2f62

SHA512
66c3d58044e48dca5781d80e756fb26e992a243e8106c99464dd673578a6663c359f9bcfda66924ad73994986a8ed59fbc243aea5033e417c0aeca7cc8515a21

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5MURM.tmp\1db923d92258d09980de5d454b997bf8f1eb86cc66ff86f1228dfc6001a6e2caN.tmp

Filesize
689KB

MD5
9779b65b55f2dc6173e7b853fb6800f6

SHA1
54c55beba837b7c7cd8353246b25da7620c73609

SHA256
ab7eb19eb483355bb9180b738d8d2d95763bc17f0e6bd68f4dca14414e7782d5

SHA512
017fc5de8d64633bb02352ed0de073ef05b5033a675fb477ec49b3187808f1fbd95e8735b5fc718115bf37ba716796c5978a3681d9b3b88402627ba1ebeef388

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-VSBA9.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/320-85-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-107-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-120-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-76-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-77-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-80-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-117-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-114-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-84-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-111-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-88-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-91-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-94-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-97-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-100-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/320-101-0x00000000008A0000-0x0000000000942000-memory.dmp

Filesize
648KB

Download
memory/320-110-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/4284-7-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4284-81-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4676-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4676-82-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4676-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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