socks5systemz | 767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f

General

Target

767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.exe
Size

4.8MB
MD5

13def02a248a8f9a20fb3e90ba6fd562
SHA1

0e8786a982967693f0a37955959c05ac21a4b853
SHA256

767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f
SHA512

07f59a475d299772b0bed4efbbc34a50fd46637a937a3d944f2fa5d09844123b1f86c486dd5b154386e0fc4bef2d169468b7f9ddad7f5682812013d6f2ac9a93
SSDEEP

98304:mrx2sTCX2PShrne5m3fFr4quUKr1IczAZumgCnjAtrax/8DIN6ll:4HTCNe5v3UKr1HU0mgCnEtyUscll

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

cecuhav.net

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/636-87-0x0000000002450000-0x00000000024F2000-memory.dmp	family_socks5systemz

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

Processes:

767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmpstarsaudioconverter32.exestarsaudioconverter32.exe

pid process

4292 767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp
760 starsaudioconverter32.exe
636 starsaudioconverter32.exe
Loads dropped DLL 1 IoCs

Processes:

767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp

pid process

4292 767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp
Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 45.155.250.90
Destination IP 152.89.198.214
Destination IP 91.211.247.248
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:

767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp

pid process

4292 767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp

pid	process
4292	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp
760	starsaudioconverter32.exe
636	starsaudioconverter32.exe

pid	process
4292	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp

description	ioc
Destination IP	45.155.250.90
Destination IP	152.89.198.214
Destination IP	91.211.247.248

pid	process
4292	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.exe767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp

description	pid	process	target process
PID 4992 wrote to memory of 4292	4992	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.exe	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp
PID 4992 wrote to memory of 4292	4992	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.exe	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp
PID 4992 wrote to memory of 4292	4992	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.exe	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp
PID 4292 wrote to memory of 760	4292	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp	starsaudioconverter32.exe
PID 4292 wrote to memory of 760	4292	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp	starsaudioconverter32.exe
PID 4292 wrote to memory of 760	4292	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp	starsaudioconverter32.exe
PID 4292 wrote to memory of 636	4292	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp	starsaudioconverter32.exe
PID 4292 wrote to memory of 636	4292	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp	starsaudioconverter32.exe
PID 4292 wrote to memory of 636	4292	767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp	starsaudioconverter32.exe

C:\Users\Admin\AppData\Local\Temp\767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.exe
"C:\Users\Admin\AppData\Local\Temp\767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4992

C:\Users\Admin\AppData\Local\Temp\is-LI0T6.tmp\767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp
"C:\Users\Admin\AppData\Local\Temp\is-LI0T6.tmp\767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp" /SL5="$401FC,4823287,54272,C:\Users\Admin\AppData\Local\Temp\767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4292

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:760

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:636

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
2.4MB

MD5
427988504aeba8e10e2f86d1edce303c

SHA1
0c60fc38cba2a78d4247ac81b2c58b257247cf1b

SHA256
e9d5e3b34a7277beaad2250c3cb820f0d49d1125d5b2ed40292959490c56518f

SHA512
f9ea22bd9721d4f735cbf7ae6f9075fa4fe4d60c04df9c87534141dd9ea6e0d98dcb948e9ffa76078f5b98227d272bdb34a3f2faeee0a1d6c2c87c31a7219fa9

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1D186.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LI0T6.tmp\767ee235d983a205755b80df62065acf425b2c59f493ab281e3898c49fa5024f.tmp
Filesize
680KB

MD5
e805fd8d14185debe4999b420e788690

SHA1
014b87617a2f2c62530ec2da91a5be0d8078c098

SHA256
720ee272d4e0d2c13caaa0051d875437161f82df74152144276e87f694712a3c

SHA512
33b68c21ef3f6ea17736ff45881019e363abc2df83ae4c1399bb3b3466199b06731bdd45c0852cad33408b54371cb9a9a574ec3445dd5030f6e56306f1e81dbf

Download Submit
memory/636-97-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-100-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-115-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-112-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-109-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-106-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-68-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-103-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-94-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-88-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-71-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-74-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-77-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-80-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-83-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/636-87-0x0000000002450000-0x00000000024F2000-memory.dmp

Filesize
648KB

Download
memory/760-63-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/760-65-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/760-60-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/760-59-0x0000000000400000-0x0000000000660000-memory.dmp

Filesize
2.4MB

Download
memory/4292-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4292-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4992-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4992-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4992-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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