socks5systemz | d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc

Analysis

max time kernel
141s
max time network
125s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
01-07-2024 01:26

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General

Target

d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.exe
Size

5.2MB
MD5

f81c2a703c9fec6f1454a2bd698d7777
SHA1

1b6557009e9a306b18c5ea38f826d08234940863
SHA256

d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc
SHA512

71f7856cb53d6c11dad667f5e02371c592685a0151dff252ca943e19568a28b71f18e104d2e4427f50005dc6cf2aeaba36e5a7e9f20033a4e1f91412483a5795
SSDEEP

98304:C0pJQEKX0H6wM19P8KUoHJ+fKSIsTf2lEDwnKWHHbxv8G9VHCdnQx7:rJ5NI18voUffTf2lvKWHdEG9AQt

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource yara_rule

behavioral2/memory/4456-86-0x0000000000B00000-0x0000000000BA2000-memory.dmp family_socks5systemz
Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmpvixenjunior32.exevixenjunior32.exe

pid process

888 d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp
1040 vixenjunior32.exe
4456 vixenjunior32.exe
Loads dropped DLL 1 IoCs

Processes:

d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp

pid process

888 d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.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:

d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp

pid process

888 d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp

resource	yara_rule
behavioral2/memory/4456-86-0x0000000000B00000-0x0000000000BA2000-memory.dmp	family_socks5systemz

pid	process
888	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp
1040	vixenjunior32.exe
4456	vixenjunior32.exe

pid	process
888	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
888	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.exed91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp

description	pid	process	target process
PID 3884 wrote to memory of 888	3884	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.exe	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp
PID 3884 wrote to memory of 888	3884	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.exe	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp
PID 3884 wrote to memory of 888	3884	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.exe	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp
PID 888 wrote to memory of 1040	888	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp	vixenjunior32.exe
PID 888 wrote to memory of 1040	888	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp	vixenjunior32.exe
PID 888 wrote to memory of 1040	888	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp	vixenjunior32.exe
PID 888 wrote to memory of 4456	888	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp	vixenjunior32.exe
PID 888 wrote to memory of 4456	888	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp	vixenjunior32.exe
PID 888 wrote to memory of 4456	888	d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp	vixenjunior32.exe

C:\Users\Admin\AppData\Local\Temp\d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.exe
"C:\Users\Admin\AppData\Local\Temp\d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3884

C:\Users\Admin\AppData\Local\Temp\is-HDDQV.tmp\d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp
"C:\Users\Admin\AppData\Local\Temp\is-HDDQV.tmp\d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp" /SL5="$4020C,5173612,54272,C:\Users\Admin\AppData\Local\Temp\d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:888

C:\Users\Admin\AppData\Local\Morphology VIXEN Junior\vixenjunior32.exe
"C:\Users\Admin\AppData\Local\Morphology VIXEN Junior\vixenjunior32.exe" -i
3⤵
- Executes dropped EXE
PID:1040

C:\Users\Admin\AppData\Local\Morphology VIXEN Junior\vixenjunior32.exe
"C:\Users\Admin\AppData\Local\Morphology VIXEN Junior\vixenjunior32.exe" -s
3⤵
- Executes dropped EXE
PID:4456

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Morphology VIXEN Junior\vixenjunior32.exe
Filesize
3.5MB

MD5
fadb5e6fa1662719c5ff548ff7ebae38

SHA1
b1569c33c8e11b99015096c8699dc48163df62f0

SHA256
dc9ea975ffde97c5a15a5b507e8ba2cde09cf6d313d7dbccff14814be493ecc6

SHA512
8c98bfc8d84f51b8952c82aa1456b7a6f12c1b71ee7c3ffcbd2953406911fe8532524a44df9e22381fcdd22895a26a240a245e8517f054fe5a435b74def53e0f

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-HDDQV.tmp\d91fd9f5423638d94aa778e9baa4d5db6d5775995f162d0653b6b0af005d10dc.tmp
Filesize
680KB

MD5
fddb6f72f126578c0c2a7d3a62eafa25

SHA1
bbc9db04383e8bdceab8ca241ff8b9d865d2da8b

SHA256
68aaee79b2d80910719c70c2995c1b7f113e3fd972eeb36ca3f5159f655b366d

SHA512
3e957f6080a88157b7807f635bf72ac28de3e5568b68c091e5b10b3ff0c99e3d2d70b5c06f7d3650d9198f101d177584c7e2ac28938f63475117be4e306284cd

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/888-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/888-71-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1040-59-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/1040-65-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/1040-64-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/1040-60-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/3884-70-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3884-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3884-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4456-72-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-91-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-67-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-76-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-75-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-79-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-82-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-85-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-86-0x0000000000B00000-0x0000000000BA2000-memory.dmp

Filesize
648KB

Download
memory/4456-69-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-96-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-99-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-102-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-105-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-108-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-111-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-115-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download
memory/4456-118-0x0000000000400000-0x000000000078F000-memory.dmp

Filesize
3.6MB

Download