socks5systemz | c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b

General

Target

c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.exe
Size

2.0MB
MD5

cc2436628125a7a1ec85f26467de79ef
SHA1

d49c3f7993f957a5f5bdc6ca8b398660e4e5961f
SHA256

c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b
SHA512

ce8229f466b801c37b7760e8cffdc768133e376a72384757ef5a7682ff0d5e4065a276436ef206d2b8aba629b2ad31621c3450800372cf15de204359cb49524a
SSDEEP

49152:32ABQaqBz4mnA3PvTTB02+KbCt+h7/KxbLJbwml:moOzFA/b1bQyb+byml

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://beqvnkz.com/search/?q=67e28dd83e08a72b4108ad4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978f671ea771795af8e05c64bdb22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608fff19c7eb97923c

http://beqvnkz.com/search/?q=67e28dd83e08a72b4108ad4e7c27d78406abdd88be4b12eab517aa5c96bd86e8928449865a8bbc896c58e713bc90c91a36b5281fc235a925ed3e55d6bd974a95129070b618e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee95923cc96d9e11

Signatures

Detect Socks5Systemz Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2392-67-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz
behavioral1/memory/2392-78-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz
behavioral1/memory/2392-92-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz
behavioral1/memory/2392-93-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2052	c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.tmp
3112	rcpcpruler.exe
2392	rcpcpruler.exe

Loads dropped DLL 1 IoCs

pid	Process
2052	c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.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	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 WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3256 wrote to memory of 2052	3256	c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.exe	89
PID 3256 wrote to memory of 2052	3256	c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.exe	89
PID 3256 wrote to memory of 2052	3256	c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.exe	89
PID 2052 wrote to memory of 3112	2052	c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.tmp	92
PID 2052 wrote to memory of 3112	2052	c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.tmp	92
PID 2052 wrote to memory of 3112	2052	c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.tmp	92
PID 2052 wrote to memory of 2392	2052	c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.tmp	93
PID 2052 wrote to memory of 2392	2052	c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.tmp	93
PID 2052 wrote to memory of 2392	2052	c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.tmp	93

C:\Users\Admin\AppData\Local\Temp\c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.exe
"C:\Users\Admin\AppData\Local\Temp\c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3256
- C:\Users\Admin\AppData\Local\Temp\is-R59NF.tmp\c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-R59NF.tmp\c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.tmp" /SL5="$90230,1712194,54272,C:\Users\Admin\AppData\Local\Temp\c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2052
- - C:\Users\Admin\AppData\Local\RCP SPRuler\rcpcpruler.exe
    "C:\Users\Admin\AppData\Local\RCP SPRuler\rcpcpruler.exe" -i
    3⤵
    - Executes dropped EXE
    PID:3112
- - C:\Users\Admin\AppData\Local\RCP SPRuler\rcpcpruler.exe
    "C:\Users\Admin\AppData\Local\RCP SPRuler\rcpcpruler.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2392

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\RCP SPRuler\rcpcpruler.exe

Filesize
1.9MB

MD5
0e63ed914b694e97c55ae55a5e3673f6

SHA1
b39459e9bbc81225e91290e3885d6737376f17ff

SHA256
ab2654902027a92d64574810d83f7f4a514b0d3384105c8713fb8aa5abe225b3

SHA512
1d945078de31ef5a5470593741daa301d70b482264dcc81a1e573eb0e3172f1d15144de3f6d6a88bc9d7b05c53f501193ea4ad20267de28e3a689e83f732a369

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-R59NF.tmp\c1e8fc39a2299bd8bfc8a0d756cfce0aead95a280acfcfb7505378ee2e8b7f3b.tmp

Filesize
677KB

MD5
f8e1d9f78e12f926961ff9dad1b68cde

SHA1
1fed3aefc1be086d8705c6927c28a1810c98b335

SHA256
fdb33e2812de516fb0ca01304a20d15c1d41e45a82fd0cc70b6b5d816a1f678c

SHA512
33dccb7a47aec149a09baa864dee513d9e3dda0fe500a42fabe46cf8bd74c882dff875a6bd88c2d8a8147285e68621c6bfc31b9b5f6e1c1f859612a80fc79df5

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-UMAOE.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/2052-48-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/2052-50-0x0000000002240000-0x0000000002241000-memory.dmp

Filesize
4KB

Download
memory/2052-7-0x0000000002240000-0x0000000002241000-memory.dmp

Filesize
4KB

Download
memory/2392-78-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/2392-63-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-98-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-95-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-46-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-93-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/2392-92-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/2392-49-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-89-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-53-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-54-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-57-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-60-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-86-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-67-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/2392-66-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-73-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-76-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-83-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/2392-80-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/3112-39-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/3112-38-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/3112-42-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/3112-43-0x0000000000400000-0x00000000005F1000-memory.dmp

Filesize
1.9MB

Download
memory/3256-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3256-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3256-47-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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