socks5systemz | 343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa

General

Target

343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.exe
Size

6.1MB
MD5

0171c79f192feec13d73bb8c2a56c036
SHA1

691d81e308dbed4334fe2323089519483560f4ee
SHA256

343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa
SHA512

92504cf44efddfd4c38b0205f72e2ea02c4124170882e40f1b92f834d8dde50b2217502aa5dd42d87733afdaf731efba8f190ef9d6cd8f5c3e9a9626a940d209
SSDEEP

196608:muUMYNk8ehXkegDwsZEB0SSzEE8YndhH3le6d:JUQ8qzgDw1S/8UbF

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/2044-142-0x00000000008A0000-0x0000000000942000-memory.dmp	family_socks5systemz
behavioral2/memory/2044-165-0x00000000008A0000-0x0000000000942000-memory.dmp	family_socks5systemz
behavioral2/memory/2044-166-0x00000000008A0000-0x0000000000942000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
4204	343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.tmp
2044	syncplayer32_64.exe

Loads dropped DLL 3 IoCs

pid	Process
4204	343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.tmp
4204	343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.tmp
4204	343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.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
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	343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	syncplayer32_64.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2308 wrote to memory of 4204	2308	343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.exe	84
PID 2308 wrote to memory of 4204	2308	343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.exe	84
PID 2308 wrote to memory of 4204	2308	343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.exe	84
PID 4204 wrote to memory of 2044	4204	343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.tmp	88
PID 4204 wrote to memory of 2044	4204	343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.tmp	88
PID 4204 wrote to memory of 2044	4204	343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.tmp	88

C:\Users\Admin\AppData\Local\Temp\343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.exe
"C:\Users\Admin\AppData\Local\Temp\343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2308
- C:\Users\Admin\AppData\Local\Temp\is-D6ON5.tmp\343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-D6ON5.tmp\343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.tmp" /SL5="$50286,6143910,54272,C:\Users\Admin\AppData\Local\Temp\343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4204
- - C:\Users\Admin\AppData\Local\SyncPlayer 1.2.8\syncplayer32_64.exe
    "C:\Users\Admin\AppData\Local\SyncPlayer 1.2.8\syncplayer32_64.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2044

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

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Downloads

C:\Users\Admin\AppData\Local\SyncPlayer 1.2.8\syncplayer32_64.exe

Filesize
2.4MB

MD5
33ee1421b4aa37ecba38e1063859710d

SHA1
ab7b709b631c6de9476438d2eb9c51f51a312431

SHA256
a39b03701f49a0312558dabaa977f13ddb2d7aa05e7ebb28129521dfacb6b9c8

SHA512
2d6c84736fb2364f220cb588228cf8d4341d7347c147081eb9db7ea4ae9f7627b295e9daba9c89ad858da577fc5389028e81b0b41f2465dba0770d8b726082f3

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-D6ON5.tmp\343f7b8482ae2c0c91c464c31bf882a1e9d7c9a3f07be59d08860a3e9d6e46fa.tmp

Filesize
683KB

MD5
0d05e478ec0e67b3670c32f7fcd99ac2

SHA1
bbef8ae7b0e306e6172e2a0d9d6bacebf7f71886

SHA256
abf4a9fad2c3c735450cd35f7ae7255a52c0da48432c41682598536a9a708360

SHA512
677790b8807661e5ed9386bfd12a892dd9fef732d3228902a0718d0d64cba25c9c23b7ff67827373a77307dc1b41695ecb9ea64b71ae622f69bed8bb84ff3af7

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NE99P.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NE99P.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
memory/2044-132-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-158-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-173-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-119-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-120-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-122-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-170-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-166-0x00000000008A0000-0x0000000000942000-memory.dmp

Filesize
648KB

Download
memory/2044-126-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-129-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-165-0x00000000008A0000-0x0000000000942000-memory.dmp

Filesize
648KB

Download
memory/2044-135-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-138-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-142-0x00000000008A0000-0x0000000000942000-memory.dmp

Filesize
648KB

Download
memory/2044-141-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-148-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-151-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-152-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-155-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-164-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2044-161-0x0000000000400000-0x000000000067C000-memory.dmp

Filesize
2.5MB

Download
memory/2308-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2308-124-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2308-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4204-22-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4204-123-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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