socks5systemz | dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d

General

Target

dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe
Size

5.2MB
MD5

08f15b3680d4efd7fa89c0dbeb01db7c
SHA1

a1badddbbd31fe4ce1b465d240258955f561a5f0
SHA256

dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d
SHA512

245ab42852b49f78f46908ebceb4f8e6a6afbce44b35af89975201591a2f56a2e49a7613a1b2f77803c04379660f7315eec54ee268eb8bc6391f7ace645dd772
SSDEEP

98304:+tpyR9r4cTwsMTJXu83Bt+pDVyFVUoSeqtvvij0nkz7d1ZKQ:Rb4bsMTFuStegVUKqt3ijHRXKQ

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

dtiuhio.info

http://dtiuhio.info/search/?q=67e28dd83e55a37d1508fa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4be8889b5e4fa9281ae978f071ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923f658cf719c9e79c

http://dtiuhio.info/search/?q=67e28dd83e55a37d1508fa1d7c27d78406abdd88be4b12eab517aa5c96bd86ee918144825a8bbc896c58e713bc90c91e36b5281fc235a925ed3e53d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff815c2ed9d9232c566

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2636-99-0x0000000002540000-0x00000000025E2000-memory.dmp	family_socks5systemz
behavioral1/memory/2636-141-0x0000000002540000-0x00000000025E2000-memory.dmp	family_socks5systemz
behavioral1/memory/2636-140-0x0000000002540000-0x00000000025E2000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp
2844	bestmetronome.exe
2636	bestmetronome.exe

Loads dropped DLL 6 IoCs

pid	Process
1712	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe
1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp
1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp
1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp
1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp
1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.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	flow	ioc	pid	Process
Destination IP	2	141.98.234.31	2636	bestmetronome.exe

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

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bestmetronome.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bestmetronome.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1712 wrote to memory of 1960	1712	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe	30
PID 1712 wrote to memory of 1960	1712	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe	30
PID 1712 wrote to memory of 1960	1712	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe	30
PID 1712 wrote to memory of 1960	1712	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe	30
PID 1712 wrote to memory of 1960	1712	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe	30
PID 1712 wrote to memory of 1960	1712	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe	30
PID 1712 wrote to memory of 1960	1712	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe	30
PID 1960 wrote to memory of 2844	1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp	31
PID 1960 wrote to memory of 2844	1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp	31
PID 1960 wrote to memory of 2844	1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp	31
PID 1960 wrote to memory of 2844	1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp	31
PID 1960 wrote to memory of 2636	1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp	32
PID 1960 wrote to memory of 2636	1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp	32
PID 1960 wrote to memory of 2636	1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp	32
PID 1960 wrote to memory of 2636	1960	dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp	32

C:\Users\Admin\AppData\Local\Temp\dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe
"C:\Users\Admin\AppData\Local\Temp\dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1712
- C:\Users\Admin\AppData\Local\Temp\is-M8439.tmp\dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-M8439.tmp\dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp" /SL5="$400F4,5185493,54272,C:\Users\Admin\AppData\Local\Temp\dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1960
- - C:\Users\Admin\AppData\Local\Best Metronome\bestmetronome.exe
    "C:\Users\Admin\AppData\Local\Best Metronome\bestmetronome.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2844
- - C:\Users\Admin\AppData\Local\Best Metronome\bestmetronome.exe
    "C:\Users\Admin\AppData\Local\Best Metronome\bestmetronome.exe" -s
    3⤵
    - Executes dropped EXE
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:2636

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Best Metronome\libeay32.dll

Filesize
2.0MB

MD5
1176a2fcbc3cfb77207db7575dd6a522

SHA1
e0a854c77a65e542712c9fe3feae2331fcddb7f4

SHA256
553200e21658e7976d496c52cc1aeb50446b877ccda4f0b073a553ec3fb48560

SHA512
bb00340e4931342c4db499d68e98542f401a985c062810225ee661a7a289a885dab8c64f37fb231212ad2a5d703f3fd0528e8402fc1033cf4128d075714e3f34

Download Submit
\Users\Admin\AppData\Local\Best Metronome\bestmetronome.exe

Filesize
2.0MB

MD5
cffd5e84560d51aff4e4775a27850c18

SHA1
184f877bac28734907d34dab809301b6b8a11145

SHA256
cb4d84b89de4b399616a1ee828288bdbf708ba11aea80781ab4a286b6843d543

SHA512
1a6215252a10d6505930ee6e457467c31146464b50a1391d107173ca3298441a78971d3652c1bc9b1ba05af1fda359e19f9cc632f55139e93cf5e79ac55bb4da

Download Submit
\Users\Admin\AppData\Local\Temp\is-M8439.tmp\dbacc22a10297607bfdbdd3c671c038faf0d344fd7c42acc7da2b6795bb6ff8d.tmp

Filesize
695KB

MD5
7e320e53116aa283f49aea5621767843

SHA1
41c61668f5f4ead267b92a32f13df38b29387503

SHA256
0e3d6b29d5084b2478e228602a9c0bb025b7319d0694db00ff270c616e88261f

SHA512
7dfd1146a396b40957cefd8d83f09576726dd4bea8dcca8f67ce851121695bc7ab6ed0b10394d714b18a74ff8cae7b64d80ce3ce743870b59aec54e3d8833172

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-MKSRD.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
\Users\Admin\AppData\Local\Temp\is-MKSRD.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1712-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1712-80-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1712-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1960-11-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/1960-78-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/1960-66-0x0000000003230000-0x000000000343F000-memory.dmp

Filesize
2.1MB

Download
memory/1960-79-0x0000000003230000-0x000000000343F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-83-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-108-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-140-0x0000000002540000-0x00000000025E2000-memory.dmp

Filesize
648KB

Download
memory/2636-141-0x0000000002540000-0x00000000025E2000-memory.dmp

Filesize
648KB

Download
memory/2636-82-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-139-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-86-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-89-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-92-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-95-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-98-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-99-0x0000000002540000-0x00000000025E2000-memory.dmp

Filesize
648KB

Download
memory/2636-105-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-136-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-111-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-114-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-117-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-120-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-124-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-127-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-130-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2636-133-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2844-74-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2844-68-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2844-69-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download
memory/2844-70-0x0000000000400000-0x000000000060F000-memory.dmp

Filesize
2.1MB

Download

Analysis

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