socks5systemz | efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d

General

Target

efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.exe
Size

4.5MB
MD5

b64b3050b57029846afbab4b5662a9bc
SHA1

471be048fbd996f1cc56267e28c7e15b5b77e80c
SHA256

efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d
SHA512

18ce5e4932721bef4a18b56b4878aaf98d180030f3795c0653ba15f32dc090a027d4b0e7b20ebba44ec2aeca1947b39d3a1d0f1df774df77e2723f8361a1f063
SSDEEP

98304:m6dwQCayJ0tFitrlVJ6DF0vw89+w5V6aXEAQyeObtRW4ZuUkH:Be23CJ6Dyvwwz5CAQyD8TUo

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

buukbbe.com

http://buukbbe.com/search/?q=67e28dd86d5ff17c1407ad1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff716c7ed94993f

http://buukbbe.com/search/?q=67e28dd86d5ff17c1407ad1a7c27d78406abdd88be4b12eab517aa5c96bd86ef91804d825a8bbc896c58e713bc90c91b36b5281fc235a925ed3e56d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9d3ccf6e9512

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1768-83-0x0000000000890000-0x0000000000932000-memory.dmp	family_socks5systemz
behavioral1/memory/1768-109-0x0000000000890000-0x0000000000932000-memory.dmp	family_socks5systemz
behavioral1/memory/1768-108-0x0000000000890000-0x0000000000932000-memory.dmp	family_socks5systemz

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

Processes:

efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmpaudialstunebite.exeaudialstunebite.exe

pid process

2504 efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp
3400 audialstunebite.exe
1768 audialstunebite.exe
Loads dropped DLL 1 IoCs

Processes:

efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp

pid process

2504 efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.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:

efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp

pid process

2504 efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp

pid	process
2504	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp
3400	audialstunebite.exe
1768	audialstunebite.exe

pid	process
2504	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
2504	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.exeefdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp

description	pid	process	target process
PID 5052 wrote to memory of 2504	5052	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.exe	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp
PID 5052 wrote to memory of 2504	5052	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.exe	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp
PID 5052 wrote to memory of 2504	5052	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.exe	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp
PID 2504 wrote to memory of 3400	2504	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp	audialstunebite.exe
PID 2504 wrote to memory of 3400	2504	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp	audialstunebite.exe
PID 2504 wrote to memory of 3400	2504	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp	audialstunebite.exe
PID 2504 wrote to memory of 1768	2504	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp	audialstunebite.exe
PID 2504 wrote to memory of 1768	2504	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp	audialstunebite.exe
PID 2504 wrote to memory of 1768	2504	efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp	audialstunebite.exe

C:\Users\Admin\AppData\Local\Temp\efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.exe
"C:\Users\Admin\AppData\Local\Temp\efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5052

C:\Users\Admin\AppData\Local\Temp\is-75432.tmp\efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp
"C:\Users\Admin\AppData\Local\Temp\is-75432.tmp\efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp" /SL5="$C0070,4446498,54272,C:\Users\Admin\AppData\Local\Temp\efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2504

C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite.exe
"C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite.exe" -i
3⤵
- Executes dropped EXE
PID:3400

C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite.exe
"C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite.exe" -s
3⤵
- Executes dropped EXE
PID:1768

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=4240,i,13544508926340531097,6671217806016090640,262144 --variations-seed-version --mojo-platform-channel-handle=3764 /prefetch:8
1⤵
PID:4408

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

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Downloads

C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite.exe
Filesize
2.4MB

MD5
e9f8f32de63704cd4f78775b70e8b27e

SHA1
3ba93cca9ba299a8be4c3ea807b5903b3c063e3d

SHA256
7c1ac656546d9e236f45196a30a82b32b7cb5ffbbc1c01d20ae406747c401197

SHA512
8eeaf2632a4a3cc07338cc34d0ab6cd3145180da3961b3defa936fec9307789728b4ffcda79fe11970bbb04e4abbe7b7403a7337a29009886fa68b8f35639779

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-75432.tmp\efdde3de766dc42d8474f9202fe7f7afe5bca4d0e0a4562ca8fd1a5aa1fc944d.tmp
Filesize
680KB

MD5
ab45198579b221f2ed1c7fa4a35dd4c3

SHA1
7d80a3b668730752d9476fa53a8c95a35439a29c

SHA256
7b85325b721785e428f7ca8e0812f5e8cb900e66103c4d7b78c0299c4b5a2db2

SHA512
1f8572ccde4570d67cb8a6158560a01ceac0846335174ce500fcc1450268df247c0ec54d95145f9df25148a180c8008fb488a7d1c268948cf323402b94c4a13b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-JS0E9.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1768-98-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-101-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-116-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-113-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-108-0x0000000000890000-0x0000000000932000-memory.dmp

Filesize
648KB

Download
memory/1768-109-0x0000000000890000-0x0000000000932000-memory.dmp

Filesize
648KB

Download
memory/1768-67-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-107-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-104-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-70-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-73-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-76-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-79-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-82-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-83-0x0000000000890000-0x0000000000932000-memory.dmp

Filesize
648KB

Download
memory/1768-87-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-92-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/1768-95-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2504-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2504-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3400-63-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3400-61-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3400-59-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/5052-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5052-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5052-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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