socks5systemz | 8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3

General

Target

8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.exe
Size

4.8MB
MD5

467d9b07346f4486eaddf16617d85671
SHA1

6881b774ad58e0c31b8cc32e86cd11092064cb01
SHA256

8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3
SHA512

5d9aa6abd42d8ff43412ddc9639b6ca4cae0dbb2dabe7477889573e06f6415d87c91d2d9e792d09b60f2456186e4101802697aea852a048e4e0d5cf880f475ef
SSDEEP

98304:mA9/g8hs9marWtgDS/wqC267qV1ca8h48Ea/woMHYgCXUyPpCIFeECD:h/q9mZtEqL77va/mJCXUyhnFeE+

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

aiypdsh.ru

http://aiypdsh.ru/search/?q=67e28dd86d5ff028450dff177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff717c0ef9d933d

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2232-84-0x0000000000890000-0x0000000000932000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
4100	8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.tmp
1532	svomediaplayer.exe
2232	svomediaplayer.exe

Loads dropped DLL 1 IoCs

pid	Process
4100	8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.tmp

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

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

pid	Process
4100	8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2100 wrote to memory of 4100	2100	8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.exe	72
PID 2100 wrote to memory of 4100	2100	8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.exe	72
PID 2100 wrote to memory of 4100	2100	8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.exe	72
PID 4100 wrote to memory of 1532	4100	8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.tmp	73
PID 4100 wrote to memory of 1532	4100	8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.tmp	73
PID 4100 wrote to memory of 1532	4100	8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.tmp	73
PID 4100 wrote to memory of 2232	4100	8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.tmp	74
PID 4100 wrote to memory of 2232	4100	8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.tmp	74
PID 4100 wrote to memory of 2232	4100	8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.tmp	74

C:\Users\Admin\AppData\Local\Temp\8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.exe
"C:\Users\Admin\AppData\Local\Temp\8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2100
- C:\Users\Admin\AppData\Local\Temp\is-1IQCG.tmp\8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-1IQCG.tmp\8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.tmp" /SL5="$50208,4800976,54272,C:\Users\Admin\AppData\Local\Temp\8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4100
- - C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
    "C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1532
- - C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
    "C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2232

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\SVO Media Player\svomediaplayer.exe

Filesize
3.0MB

MD5
86548e117dc079d908567726cd272a73

SHA1
af47b792482211a2eb0a4c6a18431c30790de9df

SHA256
772db81709362708d79a8627b54e8c792214c29172bfff4a912dd30593d2ab8b

SHA512
ff2efab4db43c05dbec3008161d948fa8268978273b2987db4a4ac28843a3c52234803b1d16a0b4be226d555ef3e1bd6b98789983612b8bb47b14f954c2460ca

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-1IQCG.tmp\8791b7678f80bcd7e58e74b73fa340ee7c81dcf26f20c81cce316b3616f589a3.tmp

Filesize
680KB

MD5
b14e10b70ec6a99a474882fd02671202

SHA1
65684d473094b9ec66148cc619f70f535eff0b76

SHA256
5ce75bbece7639d122495b880c8ec36138155844decfdce0a809fa38ce03742a

SHA512
f27d918007612b5496115992b4fa3aa9942f56c03db35e545451185c72624b179c3553def02c6b0098eb674fc8e8f1e583cea1e307949bbeb7ea6deeccb7224e

Download Submit
\Users\Admin\AppData\Local\Temp\is-F5INT.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1532-59-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1532-60-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/1532-64-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2100-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2100-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2100-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2232-82-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-95-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-131-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-70-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-73-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-76-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-79-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-126-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-84-0x0000000000890000-0x0000000000932000-memory.dmp

Filesize
648KB

Download
memory/2232-87-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-92-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-66-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-98-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-101-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-104-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-108-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-111-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-114-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-117-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-120-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/2232-123-0x0000000000400000-0x0000000000709000-memory.dmp

Filesize
3.0MB

Download
memory/4100-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4100-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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