socks5systemz | 9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3

General

Target

9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.exe
Size

4.7MB
MD5

b6325df74af5f5e5e7b4838ce53609c1
SHA1

a79fffa55e75d88d4cd139586c5b400fbdbc8f1f
SHA256

9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3
SHA512

3bd3ed1abd651e8552b8d3fb3b678e6c4b66564540896ae3fc54552a798e60b57e53aa3b9471ec8567bfce5cfb69c8ce7ec02533a978b5861b1fb272435e5156
SSDEEP

98304:mWjP0WOtMB+OZ+DFcml0hjDUDhRX2zbfrYabJ:LRIMYOZ2FcZqNmbs0

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bvxldgp.com

http://bvxldgp.com/search/?q=67e28dd8685af379125bfd4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff718c2eb919b3a

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/5060-83-0x0000000002560000-0x0000000002602000-memory.dmp	family_socks5systemz

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

Processes:

9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmpmediaplayerrptuning.exemediaplayerrptuning.exe

pid process

4420 9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp
420 mediaplayerrptuning.exe
5060 mediaplayerrptuning.exe
Loads dropped DLL 1 IoCs

Processes:

9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp

pid process

4420 9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.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 45.155.250.90
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:

9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp

pid process

4420 9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp

pid	process
4420	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp
420	mediaplayerrptuning.exe
5060	mediaplayerrptuning.exe

pid	process
4420	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
4420	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.exe9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp

description	pid	process	target process
PID 1716 wrote to memory of 4420	1716	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.exe	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp
PID 1716 wrote to memory of 4420	1716	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.exe	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp
PID 1716 wrote to memory of 4420	1716	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.exe	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp
PID 4420 wrote to memory of 420	4420	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp	mediaplayerrptuning.exe
PID 4420 wrote to memory of 420	4420	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp	mediaplayerrptuning.exe
PID 4420 wrote to memory of 420	4420	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp	mediaplayerrptuning.exe
PID 4420 wrote to memory of 5060	4420	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp	mediaplayerrptuning.exe
PID 4420 wrote to memory of 5060	4420	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp	mediaplayerrptuning.exe
PID 4420 wrote to memory of 5060	4420	9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp	mediaplayerrptuning.exe

C:\Users\Admin\AppData\Local\Temp\9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.exe
"C:\Users\Admin\AppData\Local\Temp\9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1716

C:\Users\Admin\AppData\Local\Temp\is-92CRM.tmp\9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp
"C:\Users\Admin\AppData\Local\Temp\is-92CRM.tmp\9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp" /SL5="$601F4,4673255,54272,C:\Users\Admin\AppData\Local\Temp\9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4420

C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning.exe
"C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning.exe" -i
3⤵
- Executes dropped EXE
PID:420

C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning.exe
"C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning.exe" -s
3⤵
- Executes dropped EXE
PID:5060

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Media Player RPTuning\mediaplayerrptuning.exe

Filesize
2.7MB

MD5
61c1f991cb2ede4331845096ab647d7d

SHA1
c6ddf2a55cb17a4058eb2e6df01588da9a96e438

SHA256
4647112b7dcb85584fdb64f23392101a1e68bbcdc85a00120addf45cda9cf905

SHA512
2e258f29da5a1c04a6d31e8a1a0130b400d62ec21f754150c90e05806896650fad04f79a08f0eb8aeaa36a10a9737243d9866e6c3a2eb20b08dd607863c38345

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-92CRM.tmp\9d2b4106bb781cc6c52f2eb60fab8e5f00812d70159ab55e95c529ff81e388a3.tmp

Filesize
680KB

MD5
2883ddf6925173ecfb8e9a320997b71f

SHA1
5fabceccfcb78c09cd291f7727788b68fe4fd745

SHA256
e331e923521bb37183ec3df450330a19a138ac693fdb00ef7d6a4bfdd42c4f8d

SHA512
e8fb787977a66c5580e7dc85e1711a152bcd66fa05cfc79be4cf85eda097414bcd82945684b5f9c9126a3abcff111bf58f271bf0189ea6bc632d3126528925ba

Download Submit
\Users\Admin\AppData\Local\Temp\is-5N52S.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/420-59-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/420-61-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/420-64-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

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

Filesize
80KB

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

Filesize
40KB

Download
memory/1716-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4420-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4420-68-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5060-78-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-97-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-75-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-69-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-81-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-83-0x0000000002560000-0x0000000002602000-memory.dmp

Filesize
648KB

Download
memory/5060-86-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-91-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-94-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-72-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-100-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-103-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-106-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-110-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-113-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-116-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-119-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-122-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-125-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download
memory/5060-130-0x0000000000400000-0x00000000006B4000-memory.dmp

Filesize
2.7MB

Download

Analysis

Sharing