socks5systemz | a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c

General

Target

a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe
Size

4.8MB
MD5

ca7d1c13e28753bdc617da3b0b433ed9
SHA1

4c0a3218e2ec23689bc7a144b99326bb7bca63d6
SHA256

a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c
SHA512

c06bdc5ff0a79108b79a536e8c8a0539c50684230eb079bfcb45adb795173fe478d907fae55b501912bef0cbe3663987ba8208181e99961e28a2f6f17ed8fc77
SSDEEP

98304:mYtUeQXqyNUVoiLn87G/zrSL19yCDg+JwRXt3kdESEV:X7y6VoiL86/o19yCrwR5kmSEV

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

aahznzk.ru

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4164-87-0x00000000024D0000-0x0000000002572000-memory.dmp	family_socks5systemz

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

Processes:

a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmpm4atomp3converter.exem4atomp3converter.exe

pid process

1320 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
4260 m4atomp3converter.exe
4164 m4atomp3converter.exe
Loads dropped DLL 1 IoCs

Processes:

a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp

pid process

1320 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.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 91.211.247.248
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:

a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp

pid process

1320 a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp

pid	process
1320	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
4260	m4atomp3converter.exe
4164	m4atomp3converter.exe

pid	process
1320	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp

description	ioc
Destination IP	91.211.247.248
Destination IP	152.89.198.214
Destination IP	91.211.247.248

pid	process
1320	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exea6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp

description	pid	process	target process
PID 1716 wrote to memory of 1320	1716	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
PID 1716 wrote to memory of 1320	1716	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
PID 1716 wrote to memory of 1320	1716	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
PID 1320 wrote to memory of 4260	1320	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp	m4atomp3converter.exe
PID 1320 wrote to memory of 4260	1320	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp	m4atomp3converter.exe
PID 1320 wrote to memory of 4260	1320	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp	m4atomp3converter.exe
PID 1320 wrote to memory of 4164	1320	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp	m4atomp3converter.exe
PID 1320 wrote to memory of 4164	1320	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp	m4atomp3converter.exe
PID 1320 wrote to memory of 4164	1320	a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp	m4atomp3converter.exe

C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe
"C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1716

C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
"C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp" /SL5="$60248,4799208,54272,C:\Users\Admin\AppData\Local\Temp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1320

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -i
3⤵
- Executes dropped EXE
PID:4260

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -s
3⤵
- Executes dropped EXE
PID:4164

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\M4A to MP3 Free Converter\m4atomp3converter.exe
Filesize
2.9MB

MD5
211a3066bfbaf3c39cb38dd7c1307335

SHA1
bd9917c063552a54b812a6d153ebd4c86bf3d93e

SHA256
a4651179ff7440d363a10a9470cb8c09a41c7e8e9ffcf0cc16b2e1af8a77b714

SHA512
4facc90de1197e0fc089785b5fac03243555537be3e0fbca207b47e3d7194a162ea5ed52ec84789cd8e6ccdcb0a372aab03ce4ba6784cfca0ec700575ffcc49a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-DV87N.tmp\a6af8739ed0501065fb73c3ffee24be4e20be7c4f048191efe1c83619a73f99c.tmp
Filesize
680KB

MD5
283da5c763c54b41092d9fe0d244b491

SHA1
d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03

SHA256
339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9

SHA512
306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1320-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1320-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1716-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1716-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1716-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4164-94-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-87-0x00000000024D0000-0x0000000002572000-memory.dmp

Filesize
648KB

Download
memory/4164-68-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-115-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-112-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-71-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-74-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-75-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-78-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-81-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-84-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-109-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-89-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-106-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-97-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-100-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4164-103-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4260-59-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4260-65-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4260-62-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/4260-63-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download

Analysis

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