socks5systemz | 054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e

General

Target

054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.exe
Size

4.2MB
MD5

aaa7c7773463e618bf5bfb7868b2c496
SHA1

f0d0763e8f46f300394a0ad5ab6d8f3159c59239
SHA256

054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e
SHA512

0222769c71c5c79862545c89c5e038429c0b3dec0e85cf57e9d0c9afb34a27290e7f554a336f9d8d3804b8f9e87aae25900320bf87d16008d7cc8ff1198c89c9
SSDEEP

98304:m8aI+riRQx4k6BkN9YRMKCQV6Cyg/wzt0ESSHX2MGDy+q:taJIn+fYbCQV6Tgwt050

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/4688-102-0x00000000009F0000-0x0000000000A92000-memory.dmp	family_socks5systemz
behavioral2/memory/4688-125-0x00000000009F0000-0x0000000000A92000-memory.dmp	family_socks5systemz
behavioral2/memory/4688-126-0x00000000009F0000-0x0000000000A92000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
5008	054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.tmp
4688	softartsvc32.exe

Loads dropped DLL 1 IoCs

pid	Process
5008	054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.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	141.98.234.31

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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	softartsvc32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 5008	4120	054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.exe	84
PID 4120 wrote to memory of 5008	4120	054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.exe	84
PID 4120 wrote to memory of 5008	4120	054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.exe	84
PID 5008 wrote to memory of 4688	5008	054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.tmp	88
PID 5008 wrote to memory of 4688	5008	054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.tmp	88
PID 5008 wrote to memory of 4688	5008	054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.tmp	88

C:\Users\Admin\AppData\Local\Temp\054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.exe
"C:\Users\Admin\AppData\Local\Temp\054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Users\Admin\AppData\Local\Temp\is-1UM90.tmp\054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-1UM90.tmp\054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.tmp" /SL5="$50238,4133459,54272,C:\Users\Admin\AppData\Local\Temp\054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:5008
- - C:\Users\Admin\AppData\Local\SoftArts Video Converter\softartsvc32.exe
    "C:\Users\Admin\AppData\Local\SoftArts Video Converter\softartsvc32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4688

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 Information Discovery

1

T1082

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\SoftArts Video Converter\softartsvc32.exe

Filesize
3.0MB

MD5
6fb32801f6a1b0f11359d3d3c6678030

SHA1
7f70dbd3302c7ab82b240ce82ede402113fcae16

SHA256
de273ea5060b5015341d0df6062e8274888fe00c3e5507443e7d03bf4f217f1f

SHA512
1e7c907602ba908f74eb9e4d95167161a45031918cf4bdda2be7dd9e3fa0889d55719140b5403dba1b5d233cb2145af702260a6aad60a070daa7e0aa93d52cfd

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1UM90.tmp\054240a3dec2a9be5e738ea343e91a1a2545ea09cd667cd47b759d3cca2db37e.tmp

Filesize
677KB

MD5
fd9a043395f5e065baeb5a5343812fdd

SHA1
17830b401d73b434d0228f30176f2e8ea56ee5ec

SHA256
b47b1bf8b35055ee54b2a21e24725d8590a9a3eca32e6a1e3aaca99ca54a2fb9

SHA512
3a52f79e3defbaa764289cfb1cd4421e3edd8c205d99f8330401ca4c27ae13bedfa27f74046d9c3527d4403218ae0f7236c9ffe566762f5a9983829fc855bdb1

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-DPMK0.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/4120-83-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4120-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4120-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4688-92-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-101-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-80-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-133-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-77-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-85-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-86-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-89-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-130-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-95-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-98-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-78-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-102-0x00000000009F0000-0x0000000000A92000-memory.dmp

Filesize
648KB

Download
memory/4688-108-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-111-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-112-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-115-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-118-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-121-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-124-0x0000000000400000-0x0000000000717000-memory.dmp

Filesize
3.1MB

Download
memory/4688-125-0x00000000009F0000-0x0000000000A92000-memory.dmp

Filesize
648KB

Download
memory/4688-126-0x00000000009F0000-0x0000000000A92000-memory.dmp

Filesize
648KB

Download
memory/5008-13-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/5008-82-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download

Analysis

Sharing