socks5systemz | 8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7

General

Target

8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.exe
Size

4.2MB
MD5

196720168edf48e885fedab73f19b157
SHA1

66fcbc80fc91bc9076b813f54640e903ba556fe8
SHA256

8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7
SHA512

dc8f61272a729edd52b2559a984f1d54cf6297583e5fb7b5f403e0c92f4d6845ec0e41b825668924dd1d42127f6793c559b2fae9a5b88a0d8d650e8bff2d7758
SSDEEP

98304:IU3QEdIQv2xkFlooyA7Hpz9bQwYCTCEUTT5WDzPdPS:fIQexSlmkpxQwTNUTgH4

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2328-101-0x0000000000790000-0x0000000000832000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
3940	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.tmp
2328	softartsvc.exe

Loads dropped DLL 1 IoCs

pid	Process
3940	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.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	45.155.250.90

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	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	softartsvc.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3940	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.tmp
3940	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3940	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.tmp

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 924 wrote to memory of 3940	924	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.exe	84
PID 924 wrote to memory of 3940	924	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.exe	84
PID 924 wrote to memory of 3940	924	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.exe	84
PID 3940 wrote to memory of 2328	3940	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.tmp	88
PID 3940 wrote to memory of 2328	3940	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.tmp	88
PID 3940 wrote to memory of 2328	3940	8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.tmp	88

C:\Users\Admin\AppData\Local\Temp\8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.exe
"C:\Users\Admin\AppData\Local\Temp\8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:924
- C:\Users\Admin\AppData\Local\Temp\is-6ATU0.tmp\8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-6ATU0.tmp\8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.tmp" /SL5="$8004E,4086617,54272,C:\Users\Admin\AppData\Local\Temp\8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.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:3940
- - C:\Users\Admin\AppData\Local\SoftArts Video Converter\softartsvc.exe
    "C:\Users\Admin\AppData\Local\SoftArts Video Converter\softartsvc.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2328

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\SoftArts Video Converter\softartsvc.exe

Filesize
2.7MB

MD5
dbadb36a5b485c92a260565fb75c3eed

SHA1
c2ca56c22c89b96baf0c37763ace2a3c3398372c

SHA256
ee804f7a44a2e7b5a0ed85be4cd5fd67d3cfed62958f5ca1b8f5dc2fc8c066e2

SHA512
315b2ecc3b91c4a5d2d7f006d024bfbfa0c97b67105e956715dc5f4916f21fc1f33eed0effba086cc72feb7e6e11658e3cfb77ea93d825d77953b56b80108f7f

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-6ATU0.tmp\8421b365a24537951094406b593289099de2190d9dc0a431bad056547ac3f4e7.tmp

Filesize
689KB

MD5
8c55f7a72e8751aae69f4a9b31a086fa

SHA1
78e347c27745eceba8b28daf48d2e505d048a526

SHA256
eec767c802fed29b815b06b01be1c528a620400939c1649759a3ca329ac44323

SHA512
29db594fd241b2581f8ed874ca9e62ec07d04c4ebe2ea369bc4e1f24159ece713d2705fbc971928d1d1ef6cc65ff376c5c1f3a07073916e7af585ee734b601af

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-I5U90.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/924-82-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/924-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/924-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2328-91-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-100-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-80-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-131-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-76-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-84-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-85-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-88-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-128-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-94-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-97-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-77-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-101-0x0000000000790000-0x0000000000832000-memory.dmp

Filesize
648KB

Download
memory/2328-108-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-111-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-112-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-115-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-118-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-121-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/2328-124-0x0000000000400000-0x00000000006C0000-memory.dmp

Filesize
2.8MB

Download
memory/3940-7-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3940-81-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download

Analysis

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