socks5systemz | 93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9

General

Target

93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.exe
Size

4.1MB
MD5

448ac246a160ba1171e7c30b6027dac1
SHA1

18c46ed45b0c29eb451535f43af32f48f0fa3fd4
SHA256

93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9
SHA512

20df0b0c94353238161d6d5d10b25cb8d0105651fb1fb29b761940de56d1da436bee125a98a5629b057256c3afb686aef0d75c0eae895afbe261cde9df4a6af9
SSDEEP

98304:I6EGcUrUuKziibDp1iezc4KSGr+gA0oF7KpuZim+zYzVWm:zEdd9z+WhKtnA9F7ASiUb

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2856-105-0x0000000002980000-0x0000000002A22000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
2348	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp
2856	ascreenrecorder3264.exe

Loads dropped DLL 5 IoCs

pid	Process
2412	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.exe
2348	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp
2348	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp
2348	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp
2348	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.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

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	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ascreenrecorder3264.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2348	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp
2348	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2348	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2412 wrote to memory of 2348	2412	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.exe	29
PID 2412 wrote to memory of 2348	2412	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.exe	29
PID 2412 wrote to memory of 2348	2412	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.exe	29
PID 2412 wrote to memory of 2348	2412	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.exe	29
PID 2412 wrote to memory of 2348	2412	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.exe	29
PID 2412 wrote to memory of 2348	2412	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.exe	29
PID 2412 wrote to memory of 2348	2412	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.exe	29
PID 2348 wrote to memory of 2856	2348	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp	30
PID 2348 wrote to memory of 2856	2348	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp	30
PID 2348 wrote to memory of 2856	2348	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp	30
PID 2348 wrote to memory of 2856	2348	93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp	30

C:\Users\Admin\AppData\Local\Temp\93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.exe
"C:\Users\Admin\AppData\Local\Temp\93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2412
- C:\Users\Admin\AppData\Local\Temp\is-R8U63.tmp\93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-R8U63.tmp\93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp" /SL5="$4014C,4036351,54272,C:\Users\Admin\AppData\Local\Temp\93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.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:2348
- - C:\Users\Admin\AppData\Local\AScreenRecorder\ascreenrecorder3264.exe
    "C:\Users\Admin\AppData\Local\AScreenRecorder\ascreenrecorder3264.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2856

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

\Users\Admin\AppData\Local\AScreenRecorder\ascreenrecorder3264.exe

Filesize
3.0MB

MD5
53fcf230b402455ac22cfc6fc8134642

SHA1
73b3eb7525c1b14f6bf582b0627a3cbde0aa6ef7

SHA256
4a6d374db003ecff803c695a6a673c33da13ae581de0f3cb7db7290dfe163270

SHA512
cf6de4fb93c77985c3bfd92854febd1e7bd678593bcdb39614c91486b433b56536b23c9222b919c362c57991b284792199b07fb02bda31dfb96be657b3a4fa3b

Download Submit
\Users\Admin\AppData\Local\Temp\is-5KN0O.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-5KN0O.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-R8U63.tmp\93515c8bb76478ffda22035345b863300125e6c99b37a3716eb76e3afc6f04c9.tmp

Filesize
689KB

MD5
0a9e0aa3f0880f5aee2fbf5032b9a4d5

SHA1
de8c305c93701c1363220478d2cb59639d38a304

SHA256
a1726e5b8093a955da3c4efa299e8b2a90de7a6d1468fdd788ae4e33ce5692ce

SHA512
e47401be802964806e6b30f5ae98d3a48942cffe4773206ce1fd8caa73e32bfda50981a27a04ecaa7114d586dcbaa8d364d497873bdca02fb2051beb3825054b

Download Submit
memory/2348-10-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2348-114-0x0000000003900000-0x0000000003C07000-memory.dmp

Filesize
3.0MB

Download
memory/2348-81-0x0000000003900000-0x0000000003C07000-memory.dmp

Filesize
3.0MB

Download
memory/2348-86-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2412-87-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2412-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2412-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2856-95-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-82-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-92-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-83-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-98-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-101-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-104-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-105-0x0000000002980000-0x0000000002A22000-memory.dmp

Filesize
648KB

Download
memory/2856-111-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-89-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-115-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-118-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-121-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-124-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-127-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-131-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download
memory/2856-134-0x0000000000400000-0x0000000000707000-memory.dmp

Filesize
3.0MB

Download

Analysis

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