socks5systemz | 673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc

General

Target

673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.exe
Size

3.4MB
MD5

25d1cc66a5c82adef7d2cce1982e8c17
SHA1

e520bf24faf872161571c8a7e0b32c0f57a45b04
SHA256

673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc
SHA512

8f5033dff91506ffed2ff0a255be170ec8c35cf9bedcb461dbfd4d311034ceb6511e911e22b4bd3020b4e6622e1d6f8c0072313a5f348f17d8055cd1169211e6
SSDEEP

98304:NIJsUbEhTOpjJqWU/SXA8eARk3jAwDt11nItFUv09:ZkpjclqXA8Md1nItaM9

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1140-72-0x00000000009F0000-0x0000000000A92000-memory.dmp	family_socks5systemz
behavioral2/memory/1140-100-0x00000000009F0000-0x0000000000A92000-memory.dmp	family_socks5systemz
behavioral2/memory/1140-101-0x00000000009F0000-0x0000000000A92000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

Processes:

673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmpcapturn.exe

pid	Process
2528	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp
1140	capturn.exe

Loads dropped DLL 2 IoCs

Processes:

673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmpcapturn.exe

pid	Process
2528	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp
1140	capturn.exe

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

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 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

Processes:

capturn.exe673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.exe673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmpnet.exenet1.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	capturn.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp

pid	Process
2528	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp
2528	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp

pid	Process
2528	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.exe673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmpnet.exe

description	pid	Process	procid_target
PID 2936 wrote to memory of 2528	2936	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.exe	83
PID 2936 wrote to memory of 2528	2936	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.exe	83
PID 2936 wrote to memory of 2528	2936	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.exe	83
PID 2528 wrote to memory of 4624	2528	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp	84
PID 2528 wrote to memory of 4624	2528	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp	84
PID 2528 wrote to memory of 4624	2528	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp	84
PID 2528 wrote to memory of 1140	2528	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp	85
PID 2528 wrote to memory of 1140	2528	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp	85
PID 2528 wrote to memory of 1140	2528	673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp	85
PID 4624 wrote to memory of 5028	4624	net.exe	87
PID 4624 wrote to memory of 5028	4624	net.exe	87
PID 4624 wrote to memory of 5028	4624	net.exe	87

C:\Users\Admin\AppData\Local\Temp\673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.exe
"C:\Users\Admin\AppData\Local\Temp\673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2936
- C:\Users\Admin\AppData\Local\Temp\is-U86G3.tmp\673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-U86G3.tmp\673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp" /SL5="$70062,3319887,54272,C:\Users\Admin\AppData\Local\Temp\673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.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:2528
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause capturn_11241
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4624
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause capturn_11241
      4⤵
      System Location Discovery: System Language Discovery
      PID:5028
- - C:\Users\Admin\AppData\Local\Capturn 1.0.0\capturn.exe
    "C:\Users\Admin\AppData\Local\Capturn 1.0.0\capturn.exe" -i
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:1140

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

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Downloads

C:\Users\Admin\AppData\Local\Capturn 1.0.0\capturn.exe

Filesize
3.0MB

MD5
9e405850e38f331a97036a88dd8869eb

SHA1
20c3c7c1c5e1311b6fd763719a80f114cd32f060

SHA256
2b1f9f77b501aeb36873eb6a466bd70a461017d2ef4f96c1d08d604ccd7a92b4

SHA512
e4aa5b6646a48a21f7b8cd58bfcbc3f63b78f5f87f83fe6d2f3684e2531c470b25b8be9180e0894affadc0b7c82c78ad4d36a239c496dd78d9b8824b9a0d47a6

Download Submit
C:\Users\Admin\AppData\Local\Capturn 1.0.0\sqlite3.dll

Filesize
630KB

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8BEQL.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-U86G3.tmp\673a43ced3e6f25c386fea3331cbc732c6e9901e8fa4e2f798b0ccf43d39fffc.tmp

Filesize
687KB

MD5
919eb7caaa2d44fe703f018a49530d84

SHA1
c8ac69bbdc41c357f81d84a59f50b825a1d3b9d9

SHA256
287d42bea0c114180667d350b9b72ea41ac0c7ec1329698b20bde1382f9a6764

SHA512
1b96d52ba78d3415fa69dde2c43ff193f19b3939b03fc8440fe15e47d853ef781673b429b62afb0fa5464ba855704c8ab8542f7eed76d4d2cfec5de8908ce3ec

Download Submit
memory/1140-54-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-90-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-109-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-42-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-47-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-43-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-105-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-101-0x00000000009F0000-0x0000000000A92000-memory.dmp

Filesize
648KB

Download
memory/1140-50-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-51-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/1140-100-0x00000000009F0000-0x0000000000A92000-memory.dmp

Filesize
648KB

Download
memory/1140-58-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-62-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-66-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-70-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-72-0x00000000009F0000-0x0000000000A92000-memory.dmp

Filesize
648KB

Download
memory/1140-78-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-82-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-86-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-98-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1140-94-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2528-13-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2528-49-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2936-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2936-48-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2936-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads