socks5systemz | acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd

General

Target

acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.exe
Size

4.1MB
MD5

09f0934b89389a9dca75debcd2a6a8c7
SHA1

18e0ad636a4bddb5e9f5e9ea5813e6478cfc859b
SHA256

acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd
SHA512

c4c4237b48447f64cd562c33d3e6447e4d8e3acbd61ca2fc2fd296bda96df0ef27ea061612e7fce0d33fc6b01031254f49c79ed6c245b4e32ec238b185817bb6
SSDEEP

98304:IHaz2BdVXO3DHYfq5x84Ulewa+8WPS1Kp0hmkTeuLN:eXcnDIA+Rxp0vHN

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2576-105-0x0000000002E20000-0x0000000002EC2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
1248	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp
2576	ascreenrecorder33.exe

Loads dropped DLL 5 IoCs

pid	Process
2460	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.exe
1248	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp
1248	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp
1248	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp
1248	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.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	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ascreenrecorder33.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1248	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp
1248	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1248	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 2460 wrote to memory of 1248	2460	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.exe	31
PID 2460 wrote to memory of 1248	2460	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.exe	31
PID 2460 wrote to memory of 1248	2460	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.exe	31
PID 2460 wrote to memory of 1248	2460	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.exe	31
PID 2460 wrote to memory of 1248	2460	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.exe	31
PID 2460 wrote to memory of 1248	2460	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.exe	31
PID 2460 wrote to memory of 1248	2460	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.exe	31
PID 1248 wrote to memory of 2576	1248	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp	32
PID 1248 wrote to memory of 2576	1248	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp	32
PID 1248 wrote to memory of 2576	1248	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp	32
PID 1248 wrote to memory of 2576	1248	acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp	32

C:\Users\Admin\AppData\Local\Temp\acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.exe
"C:\Users\Admin\AppData\Local\Temp\acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2460
- C:\Users\Admin\AppData\Local\Temp\is-9TJLJ.tmp\acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-9TJLJ.tmp\acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp" /SL5="$30152,4019578,54272,C:\Users\Admin\AppData\Local\Temp\acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.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:1248
- - C:\Users\Admin\AppData\Local\AScreenRecorder\ascreenrecorder33.exe
    "C:\Users\Admin\AppData\Local\AScreenRecorder\ascreenrecorder33.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2576

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\ascreenrecorder33.exe

Filesize
2.9MB

MD5
514abaff98d9da863cc283a36f3d4e4b

SHA1
53ffc018f32b24f4c73779f0504e020c46a2d44f

SHA256
bb63c337ba53acec54793a32ccf729b96540242e74e4e23c6cf377d32f4dbdeb

SHA512
360c99b86acafb9e3c283d7729b9f1393b1f1e9baa4e6aef773827a098636d895dc098ffc95ea93e7fca76860d9588af870e6dfa4886eb3d97b6f17da59454ec

Download Submit
\Users\Admin\AppData\Local\Temp\is-49IS6.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-49IS6.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-9TJLJ.tmp\acd39606c95c2a5582f80c6f46bec9cea927294dae117452d87af8d3e6fdabbd.tmp

Filesize
689KB

MD5
bfac5e363381a03735a321640d4b5e73

SHA1
be2d64f87a2d4b1876d9fecee90181e0ad64ab73

SHA256
3150729da8a18fc4f8597273a961b945cb86763e65003ff9289fde0524fd08ff

SHA512
f945adccd1c4f50d4f253277ef9827cfc97496dd103b372be14b6cc8741b03c5cf9a2a4b9d7897921230c104be3ffdfe62ac8db7922cc6ccd6ba4bd4365b9441

Download Submit
memory/1248-8-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/1248-80-0x0000000003F70000-0x0000000004263000-memory.dmp

Filesize
2.9MB

Download
memory/1248-115-0x0000000003F70000-0x0000000004263000-memory.dmp

Filesize
2.9MB

Download
memory/1248-86-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2460-87-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2460-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2460-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2576-82-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-114-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-92-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-95-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-98-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-101-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-104-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-105-0x0000000002E20000-0x0000000002EC2000-memory.dmp

Filesize
648KB

Download
memory/2576-111-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-89-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-83-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-118-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-121-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-124-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-127-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-131-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download
memory/2576-134-0x0000000000400000-0x00000000006F3000-memory.dmp

Filesize
2.9MB

Download

Analysis

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