socks5systemz | 4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721

General

Target

4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.exe
Size

6.3MB
MD5

f112f8bc18c9831c3752a251df460a9e
SHA1

11665bb3ba749878d664e37fee8c23a7048e41ee
SHA256

4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721
SHA512

0c7bafe63ab31fd67b477e611a2c65e981ee467c630d8b2773d93e1102d7cd1cdfcbc39239d8ba2f545be252492379ad9f9998cf5c70c4f0347b3bddd7902402
SSDEEP

196608:dfa4B1/ZwStLVSLEYKBZvYn1qxO0rc13f7n:R/ZDS4Y+vYyA

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2668-109-0x0000000002B60000-0x0000000002C02000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp
2668	cutmovie32.exe

Loads dropped DLL 5 IoCs

pid	Process
2368	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.exe
2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp
2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp
2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp
2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.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 5 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	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cutmovie32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp
2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2024	2368	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.exe	30
PID 2368 wrote to memory of 2024	2368	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.exe	30
PID 2368 wrote to memory of 2024	2368	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.exe	30
PID 2368 wrote to memory of 2024	2368	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.exe	30
PID 2368 wrote to memory of 2024	2368	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.exe	30
PID 2368 wrote to memory of 2024	2368	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.exe	30
PID 2368 wrote to memory of 2024	2368	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.exe	30
PID 2024 wrote to memory of 2812	2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp	31
PID 2024 wrote to memory of 2812	2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp	31
PID 2024 wrote to memory of 2812	2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp	31
PID 2024 wrote to memory of 2812	2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp	31
PID 2024 wrote to memory of 2668	2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp	33
PID 2024 wrote to memory of 2668	2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp	33
PID 2024 wrote to memory of 2668	2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp	33
PID 2024 wrote to memory of 2668	2024	4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp	33
PID 2812 wrote to memory of 2608	2812	net.exe	34
PID 2812 wrote to memory of 2608	2812	net.exe	34
PID 2812 wrote to memory of 2608	2812	net.exe	34
PID 2812 wrote to memory of 2608	2812	net.exe	34

C:\Users\Admin\AppData\Local\Temp\4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.exe
"C:\Users\Admin\AppData\Local\Temp\4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2368
- C:\Users\Admin\AppData\Local\Temp\is-FK8A4.tmp\4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-FK8A4.tmp\4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp" /SL5="$5014E,6384185,56832,C:\Users\Admin\AppData\Local\Temp\4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.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:2024
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause cut_movie_1173
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2812
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause cut_movie_1173
      4⤵
      System Location Discovery: System Language Discovery
      PID:2608
- - C:\Users\Admin\AppData\Local\Cut Movie 2020.3.33\cutmovie32.exe
    "C:\Users\Admin\AppData\Local\Cut Movie 2020.3.33\cutmovie32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2668

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\Temp\is-FK8A4.tmp\4d2c6e6ee514e8952a526ae494235a59a55e062953745a004a054d1076443721.tmp

Filesize
692KB

MD5
4906aec6c6d2508387899b1e81173c6b

SHA1
3d3018a4c1daf0385efaf823aacdc3641282efd4

SHA256
f54c3f5e796d3ed4a7c53c5f4c2c04b28a4211ff7d4d0ba47208c036287de822

SHA512
9f4ddd4205dc66c232f6b4f980b1e666c86658793bb5b53ab39afe6fa3af545890224a220de1efc4a0dcfdc735192d83d1bca5544667a851ed427c6832027b33

Download Submit
\Users\Admin\AppData\Local\Cut Movie 2020.3.33\cutmovie32.exe

Filesize
3.7MB

MD5
e53d25746bb6862a3079e17d27f2754a

SHA1
a3f252d09c1b2d13a093d8847662b085f42397f8

SHA256
03946f651f8f816775db3cdadd23e6f602a46fa80aa39c5b7f513698152cd32e

SHA512
fc2a7d21bb54acc1f3776191c9a885dff417b298bd305ff5f6e96bff95f647f79ff422f39080e95d94395f453baad856751f98a016099f3814b2b5260d4e7d13

Download Submit
\Users\Admin\AppData\Local\Temp\is-N1US0.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-N1US0.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2024-8-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2024-85-0x00000000034A0000-0x0000000003858000-memory.dmp

Filesize
3.7MB

Download
memory/2024-117-0x00000000034A0000-0x0000000003858000-memory.dmp

Filesize
3.7MB

Download
memory/2024-90-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2368-91-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2368-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2368-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2668-99-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-86-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-96-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-87-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-102-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-105-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-108-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-109-0x0000000002B60000-0x0000000002C02000-memory.dmp

Filesize
648KB

Download
memory/2668-115-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-93-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-119-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-122-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-125-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-128-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-131-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-135-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download
memory/2668-138-0x0000000000400000-0x00000000007B8000-memory.dmp

Filesize
3.7MB

Download

Analysis

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