socks5systemz | fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c

General

Target

fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.exe
Size

4.9MB
MD5

59e5b3b2ac82702dbe2820deccd84b91
SHA1

9fb8446b3b6d7db83c9e2103278de975181d4d7d
SHA256

fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c
SHA512

ae1bd9a54367471e4c2a86bbb3dd4849ad636ddf1d64a90e27196125b25935079f3558e1629c14b81bfc2b65a4936154bc183168e068ab0a9c2e23454235c6df
SSDEEP

98304:md3LFUQzaCwNZhykrddacsgpIPX7dnqnNa70kcxT4XFIT0e86HYV5E5P3CgTu:oUlCwNvyk5stPrp+Na7x9XFITNHd4

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

aykmiqs.ru

http://aykmiqs.ru/search/?q=67e28dd83f08f52f150eab187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978f471ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff716c9eb929a3c

http://aykmiqs.ru/search/?q=67e28dd83f08f52f150eab187c27d78406abdd88be4b12eab517aa5c96bd86e892874e845a8bbc896c58e713bc90c91f36b5281fc235a925ed3e57d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9d32c9689611

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4616-86-0x00000000008B0000-0x0000000000952000-memory.dmp	family_socks5systemz
behavioral1/memory/4616-109-0x00000000008B0000-0x0000000000952000-memory.dmp	family_socks5systemz
behavioral1/memory/4616-110-0x00000000008B0000-0x0000000000952000-memory.dmp	family_socks5systemz

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

Processes:

fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmpaudialstunebite32.exeaudialstunebite32.exe

pid process

3772 fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp
2208 audialstunebite32.exe
4616 audialstunebite32.exe
Loads dropped DLL 1 IoCs

Processes:

fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp

pid process

3772 fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.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:

fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp

pid process

3772 fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp

pid	process
3772	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp
2208	audialstunebite32.exe
4616	audialstunebite32.exe

pid	process
3772	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
3772	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.exefb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp

description	pid	process	target process
PID 2988 wrote to memory of 3772	2988	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.exe	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp
PID 2988 wrote to memory of 3772	2988	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.exe	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp
PID 2988 wrote to memory of 3772	2988	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.exe	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp
PID 3772 wrote to memory of 2208	3772	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp	audialstunebite32.exe
PID 3772 wrote to memory of 2208	3772	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp	audialstunebite32.exe
PID 3772 wrote to memory of 2208	3772	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp	audialstunebite32.exe
PID 3772 wrote to memory of 4616	3772	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp	audialstunebite32.exe
PID 3772 wrote to memory of 4616	3772	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp	audialstunebite32.exe
PID 3772 wrote to memory of 4616	3772	fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp	audialstunebite32.exe

C:\Users\Admin\AppData\Local\Temp\fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.exe
"C:\Users\Admin\AppData\Local\Temp\fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2988

C:\Users\Admin\AppData\Local\Temp\is-VTRB2.tmp\fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp
"C:\Users\Admin\AppData\Local\Temp\is-VTRB2.tmp\fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp" /SL5="$90048,4935654,54272,C:\Users\Admin\AppData\Local\Temp\fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3772

C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe
"C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe" -i
3⤵
- Executes dropped EXE
PID:2208

C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe
"C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe" -s
3⤵
- Executes dropped EXE
PID:4616

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=4192,i,11069752405888604640,8928124405695604965,262144 --variations-seed-version --mojo-platform-channel-handle=2736 /prefetch:8
1⤵
PID:2660

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\audialstunebite32.exe
Filesize
2.5MB

MD5
549ef3bde82cf4f0abfd6db6d6c21ab9

SHA1
7307ecfff4ba4ce823c48180ad90a3c7ad2b8a76

SHA256
c54bc080bad4b2ec933ad59a6b24dd417c64d42b7f724e32b8ec2c25a7bf694f

SHA512
e04a68dced97c74a382878f26551ed5d4181b01a842bc7e5b338b1e63ec6a1dc3558036d8dc13f66b371b2c946fae902b6682bd7a213a6fb71b89563a87cd9d3

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-SMRQ9.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-VTRB2.tmp\fb57459da8eb5ff8ee3b26602abdda7b7fdb8aa1ba6205523c80cf36f15a062c.tmp
Filesize
680KB

MD5
66f4568e899ebb18b20a877f017f08fd

SHA1
887fb52becc444c529acf26e71147b840c7ff885

SHA256
8cf70a4ca81a1d9db93d89a13adf2feb2c1da109142ac356d14fa427694178e0

SHA512
2ea355abe2f31a7edb5b8cd96799a2843549ec82991fc64d9d8a13e0faec5849fce5864ef0148540f7246c646fd3c6e369d036450fe6a075afc57bb239410b66

Download Submit
memory/2208-59-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2208-61-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2208-63-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2208-65-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/2988-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2988-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2988-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3772-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3772-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4616-74-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-96-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-67-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-77-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-80-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-83-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-86-0x00000000008B0000-0x0000000000952000-memory.dmp

Filesize
648KB

Download
memory/4616-88-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-93-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-71-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-99-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-102-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-105-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-108-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-109-0x00000000008B0000-0x0000000000952000-memory.dmp

Filesize
648KB

Download
memory/4616-110-0x00000000008B0000-0x0000000000952000-memory.dmp

Filesize
648KB

Download
memory/4616-114-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download
memory/4616-117-0x0000000000400000-0x000000000067D000-memory.dmp

Filesize
2.5MB

Download

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