socks5systemz | 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c

General

Target

4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe
Size

5.1MB
MD5

439a267e6543114a61b0ca36827b565b
SHA1

ea17cedfd622792098b5bed8f87361908a992abf
SHA256

4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c
SHA512

6665c306ec258a422459f39a7793c2cdcefae825a95ee0e7501441886bf16ca76d0e3178a64998d1770036e9c077791af382080c53a9cd7a6adf39ac7cc76831
SSDEEP

98304:msTVFr7sE3Mr30U1SCb2fJJ5WDIL1EFnygVubFwotbfDEjtAfH6H6jEKTK1Gll:jVFckMveZL1gygVu7tbb6KfHj8gll

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bmuofne.com

http://bmuofne.com/search/?q=67e28dd86809f27b415ba51b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff718c2ec90993e

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2912-83-0x00000000007C0000-0x0000000000862000-memory.dmp	family_socks5systemz

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

Processes:

4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmpstarsaudioconverter32.exestarsaudioconverter32.exe

pid process

988 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp
68 starsaudioconverter32.exe
2912 starsaudioconverter32.exe
Loads dropped DLL 1 IoCs

Processes:

4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp

pid process

988 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp
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 152.89.198.214
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:

4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp

pid process

988 4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp

pid	process
988	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp
68	starsaudioconverter32.exe
2912	starsaudioconverter32.exe

pid	process
988	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp

description	ioc
Destination IP	152.89.198.214

pid	process
988	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp

description	pid	process	target process
PID 3604 wrote to memory of 988	3604	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp
PID 3604 wrote to memory of 988	3604	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp
PID 3604 wrote to memory of 988	3604	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp
PID 988 wrote to memory of 68	988	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp	starsaudioconverter32.exe
PID 988 wrote to memory of 68	988	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp	starsaudioconverter32.exe
PID 988 wrote to memory of 68	988	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp	starsaudioconverter32.exe
PID 988 wrote to memory of 2912	988	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp	starsaudioconverter32.exe
PID 988 wrote to memory of 2912	988	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp	starsaudioconverter32.exe
PID 988 wrote to memory of 2912	988	4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp	starsaudioconverter32.exe

C:\Users\Admin\AppData\Local\Temp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe
"C:\Users\Admin\AppData\Local\Temp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3604

C:\Users\Admin\AppData\Local\Temp\is-0EDAK.tmp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp
"C:\Users\Admin\AppData\Local\Temp\is-0EDAK.tmp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp" /SL5="$80200,5069346,54272,C:\Users\Admin\AppData\Local\Temp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:988

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -i
3⤵
- Executes dropped EXE
PID:68

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -s
3⤵
- Executes dropped EXE
PID:2912

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

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
Filesize
2.6MB

MD5
e7876c7103be885e83afcf8b766b0ea2

SHA1
080778135a924fb91933926e204e3fdfceb26204

SHA256
bba479ab368c2b341afb3f898a0158e979831a32f9d722be56c6c792dbe29a60

SHA512
94c992ac6f823a1a16583adeb1f4a0a81a02ceee863c5d6555eb94c6a386279c0df3aab29a89f332e51a6ca913a6bd81baf6697932ae57abbca06e790e0a46d9

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0EDAK.tmp\4baf7ec0afd9e0117ca5893c066a95e563931ca19c42ced8cd036d64ba2a527c.tmp
Filesize
680KB

MD5
e805fd8d14185debe4999b420e788690

SHA1
014b87617a2f2c62530ec2da91a5be0d8078c098

SHA256
720ee272d4e0d2c13caaa0051d875437161f82df74152144276e87f694712a3c

SHA512
33b68c21ef3f6ea17736ff45881019e363abc2df83ae4c1399bb3b3466199b06731bdd45c0852cad33408b54371cb9a9a574ec3445dd5030f6e56306f1e81dbf

Download Submit
\Users\Admin\AppData\Local\Temp\is-D11DQ.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/68-63-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/68-59-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/68-60-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/988-67-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/988-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2912-77-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-109-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-129-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-68-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-71-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-74-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-124-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-80-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-83-0x00000000007C0000-0x0000000000862000-memory.dmp

Filesize
648KB

Download
memory/2912-85-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-90-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-93-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-96-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-99-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-102-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-105-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-121-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-112-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-115-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/2912-118-0x0000000000400000-0x0000000000693000-memory.dmp

Filesize
2.6MB

Download
memory/3604-66-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3604-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3604-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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