socks5systemz | 6fac9f2de58841c21e7edb0121a30f393d084124a066dce201a1c3500a04ce76

General

Target

d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.exe
Size

4.8MB
MD5

d478d46974e39725db3636a5b13fd187
SHA1

6f06919667d8d90237947017e08dc3a0573992bf
SHA256

d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2
SHA512

dd0033d89625ea93ca041c1ee5af2be3e608d9436aa9eefc3b18faa781ce494033632eb2d4efae4bf7b104a74a882daa08eb13b1b46ba87f08f5403af5862433
SSDEEP

98304:myHrESE3DEKxNsZ8pA09gDdcwLedh/yLVPRDLezS7kj:SSWg0A09sDLO/MVeS7kj

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bheijia.com

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4520-85-0x0000000000990000-0x0000000000A32000-memory.dmp	family_socks5systemz

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

Processes:

d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmpmoonvoiceassist32.exemoonvoiceassist32.exe

pid process

1620 d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp
1180 moonvoiceassist32.exe
4520 moonvoiceassist32.exe
Loads dropped DLL 1 IoCs

Processes:

d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp

pid process

1620 d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.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 152.89.198.214
Destination IP 141.98.234.31
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:

d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp

pid process

1620 d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp

pid	process
1620	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp
1180	moonvoiceassist32.exe
4520	moonvoiceassist32.exe

pid	process
1620	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp

description	ioc
Destination IP	152.89.198.214
Destination IP	141.98.234.31
Destination IP	91.211.247.248

pid	process
1620	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.exed16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp

description	pid	process	target process
PID 3988 wrote to memory of 1620	3988	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.exe	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp
PID 3988 wrote to memory of 1620	3988	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.exe	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp
PID 3988 wrote to memory of 1620	3988	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.exe	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp
PID 1620 wrote to memory of 1180	1620	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp	moonvoiceassist32.exe
PID 1620 wrote to memory of 1180	1620	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp	moonvoiceassist32.exe
PID 1620 wrote to memory of 1180	1620	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp	moonvoiceassist32.exe
PID 1620 wrote to memory of 4520	1620	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp	moonvoiceassist32.exe
PID 1620 wrote to memory of 4520	1620	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp	moonvoiceassist32.exe
PID 1620 wrote to memory of 4520	1620	d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp	moonvoiceassist32.exe

C:\Users\Admin\AppData\Local\Temp\d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.exe
"C:\Users\Admin\AppData\Local\Temp\d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3988

C:\Users\Admin\AppData\Local\Temp\is-9T8A7.tmp\d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp
"C:\Users\Admin\AppData\Local\Temp\is-9T8A7.tmp\d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp" /SL5="$C004E,4801216,54272,C:\Users\Admin\AppData\Local\Temp\d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1620

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe" -i
3⤵
- Executes dropped EXE
PID:1180

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe" -s
3⤵
- Executes dropped EXE
PID:4520

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4404,i,1697479186275492802,18058102846092193784,262144 --variations-seed-version --mojo-platform-channel-handle=3144 /prefetch:8
1⤵
PID:5108

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\Moon Voice Assist\moonvoiceassist32.exe
Filesize
3.0MB

MD5
d8c3f38ab94c0fa2163298fcb276504e

SHA1
fcd2692b272dad5e7dbc3ee4c8d1e9c8ec6f0b15

SHA256
749bb4028dbb6aabb2923fddf9c96074fb2fce6ba67fbf7e9ebffacedecd7694

SHA512
a68b4310e9bc7252bb6e9d7eb907105aeeac654dacf28a53a45c8d70c0cad8b15aa86902dbcd411ed134867511b17f4c87c620b7576969fee6d4453da7992eda

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-9T8A7.tmp\d16265882061fe6585f16a3adb40734690f19058197210ab760e084147c99cc2.tmp
Filesize
680KB

MD5
b69bf30e5f252cfcf7d82c84f8374a82

SHA1
4730c8a8a06df84e640f6ebc2aaa6f1236405f04

SHA256
d84b7d9a290803b0f334562ef81c1048c271d37fb9bc2d819fce473f26cb364b

SHA512
278be468edc57b6774c81755b8334eb9084eb683eeedc7d7537e6b6fdc2c104ba5392e98853dcd4e8ae052e7ca92a880b34b10c46096cfc2bc5034a15e46e52a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MK4LE.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1180-59-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/1180-63-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/1180-64-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/1180-60-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/1620-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1620-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3988-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3988-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

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

Filesize
80KB

Download
memory/4520-73-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-87-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-66-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-76-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-79-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-82-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-85-0x0000000000990000-0x0000000000A32000-memory.dmp

Filesize
648KB

Download
memory/4520-70-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-92-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-95-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-98-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-101-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-104-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-107-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-110-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/4520-113-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download

Analysis

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