socks5systemz | a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104

General

Target

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe
Size

5.0MB
MD5

ea57f86fac8e38c88cb89961bbb9efeb
SHA1

0d1aa5a2d5e63cdd256d512e0a50b7a03c3cdc01
SHA256

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104
SHA512

2dea5c5cb4f0077e8cc3c90d76ca87650a615be35e5fda87ba11fa41d0fdcc756f8a1e7cfe22c3fd358088643449e8e002f963892743278dbf41f891de1c7599
SSDEEP

98304:m6fp6ixcfmlSgztaS+QoNbQXHAkV3goQijrYElPOZn0T0lLl1r6PTPZfy:9sixc+lSgztaMtDVwqQ0OZ0glLl9+k

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

dllwhze.info

http://dllwhze.info/search/?q=67e28dd86f08f27d120eff4b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1fe8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff713c5e9919a39

http://dllwhze.info/search/?q=67e28dd86f08f27d120eff4b7c27d78406abdd88be4b12eab517aa5c96bd86ef928044845a8bbc896c58e713bc90c94a36b5281fc235a925ed3e51d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d983ecb6b9614

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2184-86-0x0000000002610000-0x00000000026B2000-memory.dmp	family_socks5systemz
behavioral1/memory/2184-110-0x0000000002610000-0x00000000026B2000-memory.dmp	family_socks5systemz
behavioral1/memory/2184-109-0x0000000002610000-0x00000000026B2000-memory.dmp	family_socks5systemz

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

Processes:

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmpmoonvoiceassist.exemoonvoiceassist.exe

pid process

4540 a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
3288 moonvoiceassist.exe
2184 moonvoiceassist.exe
Loads dropped DLL 1 IoCs

Processes:

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

pid process

4540 a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.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:

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

pid process

4540 a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

pid	process
4540	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
3288	moonvoiceassist.exe
2184	moonvoiceassist.exe

pid	process
4540	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
4540	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exea67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

description	pid	process	target process
PID 4760 wrote to memory of 4540	4760	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 4760 wrote to memory of 4540	4760	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 4760 wrote to memory of 4540	4760	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 4540 wrote to memory of 3288	4540	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 4540 wrote to memory of 3288	4540	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 4540 wrote to memory of 3288	4540	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 4540 wrote to memory of 2184	4540	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 4540 wrote to memory of 2184	4540	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 4540 wrote to memory of 2184	4540	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe

C:\Users\Admin\AppData\Local\Temp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe
"C:\Users\Admin\AppData\Local\Temp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4760

C:\Users\Admin\AppData\Local\Temp\is-MMBQB.tmp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
"C:\Users\Admin\AppData\Local\Temp\is-MMBQB.tmp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp" /SL5="$5011A,4984627,54272,C:\Users\Admin\AppData\Local\Temp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4540

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe" -i
3⤵
- Executes dropped EXE
PID:3288

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe" -s
3⤵
- Executes dropped EXE
PID:2184

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\Moon Voice Assist\moonvoiceassist.exe
Filesize
3.4MB

MD5
bf62e0e8e4f51d92070bc9618b3062eb

SHA1
f6f66fb1b4235405da7375b0f04de9f2d8b76989

SHA256
3f4e0dd0f41d2005edef4c3898c4c05823effc80d63f2d5ab63e0fdde7458151

SHA512
1e1bdd43241e65abd495480aa735fe96f6d979c80ef77e63651b802022dfdbbb9af894a96c7b1c1b3c42e74ca6036de04663744d728ff327ae9eef17a9727337

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MMBQB.tmp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
Filesize
680KB

MD5
bb765f2ae7f9da76f9edef8dde07f1cf

SHA1
ba5af8f092247d9a81d9d50d5390bbe5a280501a

SHA256
65b94a7e8d0e19c89c871b49457934d80365d9a9c2ff781509a1cb68421da552

SHA512
a6d7f16c4bb1e6dde9e221ae343a2e46de39b314f56bb9877574b29d14becd209f131a5b649faa97aa847c252fe379b96a71791bdd1f102e054fafb7a8e0b0aa

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/2184-96-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-80-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-117-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-114-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-109-0x0000000002610000-0x00000000026B2000-memory.dmp

Filesize
648KB

Download
memory/2184-110-0x0000000002610000-0x00000000026B2000-memory.dmp

Filesize
648KB

Download
memory/2184-108-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-68-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-105-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-102-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-71-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-74-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-77-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-99-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-83-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-86-0x0000000002610000-0x00000000026B2000-memory.dmp

Filesize
648KB

Download
memory/2184-90-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/2184-93-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/3288-65-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/3288-63-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/3288-60-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/3288-59-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4540-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4540-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4760-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4760-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4760-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing