socks5systemz | 54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e

General

Target

54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe
Size

4.8MB
MD5

470cba8e9ff7f2979c8c3021bfd11067
SHA1

b8654d5cad23413541e31b8d5c38229f8833407c
SHA256

54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e
SHA512

5425e9991207a9476cfe389d6c714b06e82c64bd6f4bdd1b3f482b46f284e61ac5925a2339b0af5aa3575adda8310affb76f8bc2032485cc9d99e7c451e4593f
SSDEEP

98304:mcKTJUwrhDaSgqX/mNRt0s9I+9U2JL9kMB8+g2DYf4ATH+ENT2:6Uwtvvmd9lxJwccTeENT2

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

buctmkb.com

gdpaebk.com

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2952-92-0x0000000002680000-0x0000000002722000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmpfreeaudioconverter.exefreeaudioconverter.exe

pid process

1896 54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
2516 freeaudioconverter.exe
2952 freeaudioconverter.exe

pid	process
1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
2516	freeaudioconverter.exe
2952	freeaudioconverter.exe

Loads dropped DLL 5 IoCs

Processes:

54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp

pid	process
620	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe
1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp

Unexpected DNS network traffic destination 13 IoCs

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

Processes:

description	ioc
Destination IP	141.98.234.31
Destination IP	81.31.197.38
Destination IP	45.155.250.90
Destination IP	91.211.247.248
Destination IP	152.89.198.214
Destination IP	45.155.250.90
Destination IP	81.31.197.38
Destination IP	152.89.198.214
Destination IP	152.89.198.214
Destination IP	141.98.234.31
Destination IP	91.211.247.248
Destination IP	45.155.250.90
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp

pid process

1896 54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp

pid	process
1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp

description	pid	process	target process
PID 620 wrote to memory of 1896	620	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
PID 620 wrote to memory of 1896	620	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
PID 620 wrote to memory of 1896	620	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
PID 620 wrote to memory of 1896	620	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
PID 620 wrote to memory of 1896	620	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
PID 620 wrote to memory of 1896	620	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
PID 620 wrote to memory of 1896	620	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
PID 1896 wrote to memory of 2516	1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp	freeaudioconverter.exe
PID 1896 wrote to memory of 2516	1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp	freeaudioconverter.exe
PID 1896 wrote to memory of 2516	1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp	freeaudioconverter.exe
PID 1896 wrote to memory of 2516	1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp	freeaudioconverter.exe
PID 1896 wrote to memory of 2952	1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp	freeaudioconverter.exe
PID 1896 wrote to memory of 2952	1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp	freeaudioconverter.exe
PID 1896 wrote to memory of 2952	1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp	freeaudioconverter.exe
PID 1896 wrote to memory of 2952	1896	54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp	freeaudioconverter.exe

C:\Users\Admin\AppData\Local\Temp\54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe
"C:\Users\Admin\AppData\Local\Temp\54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:620

C:\Users\Admin\AppData\Local\Temp\is-OAH82.tmp\54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
"C:\Users\Admin\AppData\Local\Temp\is-OAH82.tmp\54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp" /SL5="$400F4,4749985,54272,C:\Users\Admin\AppData\Local\Temp\54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1896

C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe" -i
3⤵
- Executes dropped EXE
PID:2516

C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe" -s
3⤵
- Executes dropped EXE
PID:2952

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe
Filesize
3.0MB

MD5
578cb9964772cf18127e86ec45e5cfa0

SHA1
0ebf42134b760e54441f2c6e5f63ad8fc38a94ff

SHA256
ba7cbb47023462fdae507354f56b93c0d437eb395e085a83148a188ee8764387

SHA512
a131e7ee03a44b92e94d0f95d27f6f6e1da7ed20cd2342c4de7ccdb8537e43e774e9066c464d822b7ea97eda74f2a2f92108053674f7b7f706fc90878f83746b

Download Submit
\Users\Admin\AppData\Local\Temp\is-8TMC8.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-8TMC8.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-OAH82.tmp\54da8547a7cab8d0e75cf10526da2d7a8423bd67bbb0932a35f305090e341d7e.tmp
Filesize
680KB

MD5
f519683b3c418feee49361b3411d8c3d

SHA1
f981468acbf6b3e1d081a52203f7e3f017fcafe7

SHA256
4fc60883a82f58b3a798be19bd6a25592631ac3ccb23af3b1a95c41dab65af4a

SHA512
db0e3a2363bb9433cc57d3da42bfb901f0ed128aad2297a88cca1dae650f69a438ef4f7634b945568bb99f59bc587eb698f08cf8dc8162808ac8575fa280c805

Download Submit
memory/620-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/620-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/620-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1896-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1896-64-0x0000000003BB0000-0x0000000003EAB000-memory.dmp

Filesize
3.0MB

Download
memory/1896-79-0x0000000003BB0000-0x0000000003EAB000-memory.dmp

Filesize
3.0MB

Download
memory/1896-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2516-65-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2516-66-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2516-69-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-98-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-107-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-75-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-82-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-85-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-88-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-91-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-92-0x0000000002680000-0x0000000002722000-memory.dmp

Filesize
648KB

Download
memory/2952-71-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-101-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-104-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-78-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-110-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-113-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-116-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-119-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-122-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-125-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-128-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-131-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/2952-134-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads