socks5systemz | 371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11

General

Target

371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.exe
Size

4.7MB
MD5

bca4c47d332ba27ec6bf061a88989ce9
SHA1

5a7c6c5557e912cd3a2435246d593f9ba63ef96c
SHA256

371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11
SHA512

f5001ad9f4b52bcd00d11ef3541738a67aa4f7a0708ac4a8589f19a65b714c5795bdcb0df92f56fd27eb513c4a27d31b2b2635a6ab4018fe5570cc399626ee27
SSDEEP

98304:m6AjF+ie7Z7rBgFtMsd3YiUxA7wG1dX5Zj3tDMK9yxXCynX:lOFDed7r+pd3GxAn1dpZzpMKckE

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

buabbdz.com

http://buabbdz.com/search/?q=67e28dd86d5ff028450dff177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c1e7929938

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4324-85-0x0000000000970000-0x0000000000A12000-memory.dmp	family_socks5systemz

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

Processes:

371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmprecordpadsoundrecorder32.exerecordpadsoundrecorder32.exe

pid process

3248 371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp
2740 recordpadsoundrecorder32.exe
4324 recordpadsoundrecorder32.exe
Loads dropped DLL 1 IoCs

Processes:

371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp

pid process

3248 371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.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 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:

371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp

pid process

3248 371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp

pid	process
3248	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp
2740	recordpadsoundrecorder32.exe
4324	recordpadsoundrecorder32.exe

pid	process
3248	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
3248	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.exe371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp

description	pid	process	target process
PID 3988 wrote to memory of 3248	3988	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.exe	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp
PID 3988 wrote to memory of 3248	3988	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.exe	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp
PID 3988 wrote to memory of 3248	3988	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.exe	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp
PID 3248 wrote to memory of 2740	3248	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp	recordpadsoundrecorder32.exe
PID 3248 wrote to memory of 2740	3248	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp	recordpadsoundrecorder32.exe
PID 3248 wrote to memory of 2740	3248	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp	recordpadsoundrecorder32.exe
PID 3248 wrote to memory of 4324	3248	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp	recordpadsoundrecorder32.exe
PID 3248 wrote to memory of 4324	3248	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp	recordpadsoundrecorder32.exe
PID 3248 wrote to memory of 4324	3248	371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp	recordpadsoundrecorder32.exe

C:\Users\Admin\AppData\Local\Temp\371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.exe
"C:\Users\Admin\AppData\Local\Temp\371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3988

C:\Users\Admin\AppData\Local\Temp\is-JE8V1.tmp\371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp
"C:\Users\Admin\AppData\Local\Temp\is-JE8V1.tmp\371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp" /SL5="$50228,4719515,54272,C:\Users\Admin\AppData\Local\Temp\371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3248

C:\Users\Admin\AppData\Local\RecordPad Sound Recorder\recordpadsoundrecorder32.exe
"C:\Users\Admin\AppData\Local\RecordPad Sound Recorder\recordpadsoundrecorder32.exe" -i
3⤵
- Executes dropped EXE
PID:2740

C:\Users\Admin\AppData\Local\RecordPad Sound Recorder\recordpadsoundrecorder32.exe
"C:\Users\Admin\AppData\Local\RecordPad Sound Recorder\recordpadsoundrecorder32.exe" -s
3⤵
- Executes dropped EXE
PID:4324

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\RecordPad Sound Recorder\recordpadsoundrecorder32.exe
Filesize
2.8MB

MD5
3f315c235975d65b288f642f8ba3d6ce

SHA1
62626e82d08a23caa6eae7c2544e37d75fac9a97

SHA256
9cf6c62f9fde3cbad9939e50fcbf6016e326bc6f068fdf0ce87b19205820071f

SHA512
cd6415bb04aabde0b019535abc1d84b92d1a73c396299a0b6e6cce1ceb25642c674ce6a5cda92e879e9a5146c68fa2aa1b38e96c2fec19a8027f775186a995b6

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-JE8V1.tmp\371be643e90ad6f4d63209b2409da79b2d96ef463258844bffd2bad636d4af11.tmp
Filesize
680KB

MD5
8ef7001015e126e74bc41268504ca1e2

SHA1
b30c0fa54ecb63c735407144a3297e0b9d881e27

SHA256
e06e234073ae4a9df232aa1d535f02429a371748e164606c1b1a4c74bd98c56c

SHA512
122df0a13f2d0c3103f0f686863cfab46114a417c5d6a4382410c2ccf0aa3e9859d8e760b5c1860c776b1064f5bccbf1e8aa50108f948f9240a5dd80d31cf17b

Download Submit
\Users\Admin\AppData\Local\Temp\is-FBDE2.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/2740-59-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/2740-60-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/2740-64-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/3248-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3248-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3988-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3988-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3988-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4324-82-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-101-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-73-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-76-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-79-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-66-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-85-0x0000000000970000-0x0000000000A12000-memory.dmp

Filesize
648KB

Download
memory/4324-87-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-92-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-95-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-98-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-70-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-104-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-107-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-111-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-114-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-117-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-120-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-123-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-126-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download
memory/4324-131-0x0000000000400000-0x00000000006D6000-memory.dmp

Filesize
2.8MB

Download

Analysis

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