socks5systemz | 3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1

General

Target

3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.exe
Size

4.8MB
MD5

a0160ca9211780c5e0c1cacb5b8a8cf8
SHA1

5f0fcda7df0dd705c09694b0a12b5d348c853451
SHA256

3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1
SHA512

4a42e3985366c11311fd142c91084f749c75c86b98d3cd68dd37c98cac721a6274ca7404503b81c081c838c9c4ea63ca186bb8831b998d53f4d98fbd0706d0d2
SSDEEP

98304:mLvddaQ24VT8u6zOVEt3Cq2CMR6kJi97yC0AuPdln2O2UrdGJNt:AVoQ9VITOVEICXkJi9CXn2Cst

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bocuhud.com

http://bocuhud.com/search/?q=67e28dd83e0bfb2e455aa5187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff712c4e9909a3c

http://bocuhud.com/search/?q=67e28dd83e0bfb2e455aa5187c27d78406abdd88be4b12eab517aa5c96bd86ec94814f845a8bbc896c58e713bc90c91f36b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d993fcb6a9611

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4420-86-0x00000000028D0000-0x0000000002972000-memory.dmp	family_socks5systemz
behavioral1/memory/4420-109-0x00000000028D0000-0x0000000002972000-memory.dmp	family_socks5systemz
behavioral1/memory/4420-110-0x00000000028D0000-0x0000000002972000-memory.dmp	family_socks5systemz

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

Processes:

3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmpm4atomp3freeconverter.exem4atomp3freeconverter.exe

pid process

2740 3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp
1584 m4atomp3freeconverter.exe
4420 m4atomp3freeconverter.exe
Loads dropped DLL 1 IoCs

Processes:

3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp

pid process

2740 3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.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:

3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp

pid process

2740 3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp

pid	process
2740	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp
1584	m4atomp3freeconverter.exe
4420	m4atomp3freeconverter.exe

pid	process
2740	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp

description	ioc
Destination IP	152.89.198.214

pid	process
2740	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.exe3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp

description	pid	process	target process
PID 3520 wrote to memory of 2740	3520	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.exe	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp
PID 3520 wrote to memory of 2740	3520	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.exe	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp
PID 3520 wrote to memory of 2740	3520	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.exe	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp
PID 2740 wrote to memory of 1584	2740	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp	m4atomp3freeconverter.exe
PID 2740 wrote to memory of 1584	2740	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp	m4atomp3freeconverter.exe
PID 2740 wrote to memory of 1584	2740	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp	m4atomp3freeconverter.exe
PID 2740 wrote to memory of 4420	2740	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp	m4atomp3freeconverter.exe
PID 2740 wrote to memory of 4420	2740	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp	m4atomp3freeconverter.exe
PID 2740 wrote to memory of 4420	2740	3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp	m4atomp3freeconverter.exe

C:\Users\Admin\AppData\Local\Temp\3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.exe
"C:\Users\Admin\AppData\Local\Temp\3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3520

C:\Users\Admin\AppData\Local\Temp\is-TG53C.tmp\3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp
"C:\Users\Admin\AppData\Local\Temp\is-TG53C.tmp\3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp" /SL5="$E01C2,4755530,54272,C:\Users\Admin\AppData\Local\Temp\3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2740

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -i
3⤵
- Executes dropped EXE
PID:1584

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -s
3⤵
- Executes dropped EXE
PID:4420

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\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
Filesize
2.9MB

MD5
d09935faa118e95cb5c31fafd8158b3c

SHA1
a121ca652207defda12105730cc786b8bc36ea76

SHA256
84a0bf06fc2f37f0fe50882888be474b03ea4c833a2fab18c373e899deb51c4c

SHA512
a4276eaf466d55216c89bc7ab23926f9bef1fe479780b22aac52252653e09711853eef2e8789dc9e181f7c437e857dcfd29bcb08d8150291b49bff71f82ae391

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-Q95IJ.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-TG53C.tmp\3e9d20e9164affd09d80bd2baa0eb93df9314d169c66bcdc57c6a3be24b5adb1.tmp
Filesize
680KB

MD5
dafff71ba13e58daac2c21ed0ed54458

SHA1
ec169d6088ee3a539030ef630164dae1dd7d9a80

SHA256
167c4af51c1b261fc6bc53d7e4eab5cc5408ac4953518f1dcd129dbe62aca9fb

SHA512
ecd2f14d391892f82efea278949c0a20367bec0eefef159ad44915d008b462ba0ffb5b00175c5b7f9b9e1f2779f9ed562eb39cf143dd9f44b550f96a7c9bc719

Download Submit
memory/1584-59-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/1584-60-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/1584-65-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/1584-63-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2740-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2740-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3520-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3520-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3520-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4420-74-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-96-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-68-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-77-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-80-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-83-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-86-0x00000000028D0000-0x0000000002972000-memory.dmp

Filesize
648KB

Download
memory/4420-90-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-93-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-71-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-99-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-102-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-105-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-108-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-109-0x00000000028D0000-0x0000000002972000-memory.dmp

Filesize
648KB

Download
memory/4420-110-0x00000000028D0000-0x0000000002972000-memory.dmp

Filesize
648KB

Download
memory/4420-114-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4420-117-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download

Analysis

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