socks5systemz | b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 01:53

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General

Target

b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.exe
Size

5.2MB
MD5

a2b83e958887f54c79bc41ea4c8dd270
SHA1

0cf07634b974fc6a02dbb7928a19fe90417398c2
SHA256

b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792
SHA512

cd1182678fc8fef1103c0c9604f246f44a110f7990f3ba372c9a1566f6ec50c164935f61652a2dc17728d57680f51cd283c59ec53df51a178b08ba75bb3bc3c4
SSDEEP

98304:CW/MkDadro9uikcBbAtUHcEybl5cxPoniYJ1LRExYz2qMjR24YCSQx9W:z6Zo4zcRSNbcB4tz2qMl2NCSQa

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource yara_rule

behavioral2/memory/4888-90-0x00000000009B0000-0x0000000000A52000-memory.dmp family_socks5systemz
Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz

resource	yara_rule
behavioral2/memory/4888-90-0x00000000009B0000-0x0000000000A52000-memory.dmp	family_socks5systemz

Detects executables packed with VMProtect. 20 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4844-60-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4844-65-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4844-63-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-69-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-72-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-75-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-76-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-77-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-80-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-83-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-86-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-89-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-96-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-99-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-102-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-105-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-108-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-111-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-114-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect
behavioral2/memory/4888-117-0x0000000000400000-0x00000000007B5000-memory.dmp	INDICATOR_EXE_Packed_VMProtect

Executes dropped EXE 3 IoCs

Processes:

b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmpvkfreeaudiosaver32_64.exevkfreeaudiosaver32_64.exe

pid process

4940 b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp
4844 vkfreeaudiosaver32_64.exe
4888 vkfreeaudiosaver32_64.exe
Loads dropped DLL 1 IoCs

Processes:

b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp

pid process

4940 b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.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:

b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp

pid process

4940 b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp

pid	process
4940	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp
4844	vkfreeaudiosaver32_64.exe
4888	vkfreeaudiosaver32_64.exe

pid	process
4940	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
4940	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.exeb8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp

description	pid	process	target process
PID 1956 wrote to memory of 4940	1956	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.exe	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp
PID 1956 wrote to memory of 4940	1956	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.exe	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp
PID 1956 wrote to memory of 4940	1956	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.exe	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp
PID 4940 wrote to memory of 4844	4940	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp	vkfreeaudiosaver32_64.exe
PID 4940 wrote to memory of 4844	4940	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp	vkfreeaudiosaver32_64.exe
PID 4940 wrote to memory of 4844	4940	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp	vkfreeaudiosaver32_64.exe
PID 4940 wrote to memory of 4888	4940	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp	vkfreeaudiosaver32_64.exe
PID 4940 wrote to memory of 4888	4940	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp	vkfreeaudiosaver32_64.exe
PID 4940 wrote to memory of 4888	4940	b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp	vkfreeaudiosaver32_64.exe

C:\Users\Admin\AppData\Local\Temp\b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.exe
"C:\Users\Admin\AppData\Local\Temp\b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1956

C:\Users\Admin\AppData\Local\Temp\is-DMPAH.tmp\b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp
"C:\Users\Admin\AppData\Local\Temp\is-DMPAH.tmp\b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp" /SL5="$90046,5184047,54272,C:\Users\Admin\AppData\Local\Temp\b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4940

C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe
"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe" -i
3⤵
- Executes dropped EXE
PID:4844

C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe
"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe" -s
3⤵
- Executes dropped EXE
PID:4888

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 --field-trial-handle=4028,i,2113996974559895641,18156918660790954073,262144 --variations-seed-version --mojo-platform-channel-handle=4208 /prefetch:8
1⤵
PID:4520

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\is-DMPAH.tmp\b8c7a3b3b6471414de5c0b59b4eec0cb65df6c869b596b99aa233ed2d02cf792.tmp
Filesize
680KB

MD5
70295416713c0ce535665d806e3d54ac

SHA1
fe13c334ec67412f41fe190f93da7d45a57eccbd

SHA256
958c5f807a8268b09828e0f02a6c75a92f3a87dbd1853eb62e5996db990ba2ba

SHA512
2336597fb6ffe697ba62cd931479108556fee44319176989f961ae43aea62b111df6870a169202c6d960aface42779a2f82db48a69fe2072b711a512812f925c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-OQ5TB.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe
Filesize
3.7MB

MD5
38289fa095a635a74d141219dd611877

SHA1
bb36afedf79878d83a833d06993c7359c9819292

SHA256
b1140969338e4f120617971973eadce0a1b85ac9c5a747ac8cfe82b0e1994ea3

SHA512
003aebd7b0649070a3e2f71b52b3a9e0498bd2592b8e783fb9681d3d19064cb7f1a183b3f1cc2ac46d461db3ce991eee6196119ab56500c43de4d97a3a797d92

Download Submit
memory/1956-70-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1956-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1956-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4844-59-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4844-60-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4844-65-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4844-63-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-72-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-89-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-68-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-117-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-114-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-75-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-76-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-77-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-80-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-83-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-86-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-69-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-90-0x00000000009B0000-0x0000000000A52000-memory.dmp

Filesize
648KB

Download
memory/4888-96-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-99-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-102-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-105-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-108-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4888-111-0x0000000000400000-0x00000000007B5000-memory.dmp

Filesize
3.7MB

Download
memory/4940-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4940-71-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download