socks5systemz | a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b

General

Target

a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe
Size

4.1MB
MD5

e121298a3f3e2bc3f8c921396cbaac54
SHA1

1289acbe827d05aa9a10e9cabbed698ebe06b268
SHA256

a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b
SHA512

75e21e929e17c1ba8eebb5c4cefdf4fe76b7d9de9d940a50e7f6fa5f36a8d5b8b2cc8dcc3aff10f7aa48bc2618ccc940fe87ade45dc1fb5ff8955aa3ea3b6cdf
SSDEEP

98304:CaU7kJv7x9tTw2fp+6wUMVl2ieC3tQlDGgc/832kXQxU:C7WvPd3fp+6wHFQDciQ+

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

dltvbud.info

http://dltvbud.info/search/?q=67e28dd8685cf679160da41e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923f658dfc19c2eb95

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2912-77-0x0000000002640000-0x00000000026E2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp
1016	soundvolumeview.exe
2912	soundvolumeview.exe

Loads dropped DLL 5 IoCs

pid	Process
2108	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe
3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp
3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp
3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp
3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp

Unexpected DNS network traffic destination 3 IoCs

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

description	flow	ioc	pid	Process
Destination IP	2	152.89.198.214	2912	soundvolumeview.exe
Destination IP	3	152.89.198.214	2912	soundvolumeview.exe
Destination IP	6	91.211.247.248	2912	soundvolumeview.exe

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 4 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	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	soundvolumeview.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	soundvolumeview.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 3000	2108	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe	30
PID 2108 wrote to memory of 3000	2108	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe	30
PID 2108 wrote to memory of 3000	2108	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe	30
PID 2108 wrote to memory of 3000	2108	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe	30
PID 2108 wrote to memory of 3000	2108	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe	30
PID 2108 wrote to memory of 3000	2108	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe	30
PID 2108 wrote to memory of 3000	2108	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe	30
PID 3000 wrote to memory of 1016	3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	31
PID 3000 wrote to memory of 1016	3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	31
PID 3000 wrote to memory of 1016	3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	31
PID 3000 wrote to memory of 1016	3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	31
PID 3000 wrote to memory of 2912	3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	32
PID 3000 wrote to memory of 2912	3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	32
PID 3000 wrote to memory of 2912	3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	32
PID 3000 wrote to memory of 2912	3000	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	32

C:\Users\Admin\AppData\Local\Temp\a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe
"C:\Users\Admin\AppData\Local\Temp\a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Users\Admin\AppData\Local\Temp\is-BB8B0.tmp\a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-BB8B0.tmp\a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp" /SL5="$40156,3928868,54272,C:\Users\Admin\AppData\Local\Temp\a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3000
- - C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe
    "C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1016
- - C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe
    "C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe" -s
    3⤵
    - Executes dropped EXE
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:2912

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe

Filesize
2.6MB

MD5
02253e468c223d8b662625a068388d29

SHA1
066a952ae171b6d4f3d62b19bf82dfe7f0063cb7

SHA256
551b87277f9bd71867c1de518b8a3b99ba3b7ad1c9a3700e5d829b70c2c1dae9

SHA512
032b9e8ec206bee0e4396490e08d01c8f2a515643e25113751b2b81e3fe01ebdedbc353ab5715403a94f3512a1c37c5c2054c4536c9c0bff4cbb923185cacde7

Download Submit
\Users\Admin\AppData\Local\Temp\is-BB8B0.tmp\a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp

Filesize
680KB

MD5
a8fa09b2a3abe18d8920164c486ef331

SHA1
e27944cd74d1ad2b23d5dddf4644e1a3dda4c82c

SHA256
c673576958e73def146739a94f9e79d5ec1e2a2a55f907562344433b2771e1db

SHA512
85460136c0dfdec9c75cb6d08562f00991702d083e8eedd3e5cba753917c0114718bcb73267b86923a3270b505368977125dfd5f55a204094262c0a30c8979f0

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1016-50-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/1016-45-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/1016-46-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2108-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2108-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2108-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2912-65-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-81-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-118-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-115-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-112-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-58-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-59-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-62-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-109-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-68-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-71-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-74-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-77-0x0000000002640000-0x00000000026E2000-memory.dmp

Filesize
648KB

Download
memory/2912-52-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-84-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-87-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-90-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-93-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-96-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-99-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-102-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/2912-106-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3000-9-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3000-44-0x00000000034B0000-0x0000000003755000-memory.dmp

Filesize
2.6MB

Download
memory/3000-54-0x00000000034B0000-0x0000000003755000-memory.dmp

Filesize
2.6MB

Download
memory/3000-53-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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