socks5systemz | f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a

General

Target

f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.exe
Size

2.0MB
MD5

2ecfa7575a49e26bd3b364c8fea6f4d3
SHA1

a0eea6216395ce4f0e8a579cd9d9b64feee1805e
SHA256

f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a
SHA512

a1c529e0f4648c5cfbfe4ae51002e992a412e56846b00648d7889dea430af3c3241c60360dfe6a5783495a6f686e0c31bd356c068d0684cd64158874a605916b
SSDEEP

49152:32v3R/NFjHnQ61+T1TZ+dcmYXRWyZUI7CPuG1bFrJJu8G6+8:m/lHQ6gTTIcrRW8CNVW895

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bguhceg.com/search/?q=67e28dd86e58a42e450ca94d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978f671ea771795af8e05c642db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffe14c1e8929f3e

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1676-72-0x0000000000870000-0x0000000000912000-memory.dmp	family_socks5systemz
behavioral1/memory/1676-75-0x0000000000870000-0x0000000000912000-memory.dmp	family_socks5systemz
behavioral1/memory/1676-84-0x0000000000870000-0x0000000000912000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4872	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.tmp
5104	perlee.exe
1676	perlee.exe

Loads dropped DLL 3 IoCs

pid	Process
4872	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.tmp
4872	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.tmp
4872	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.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	141.98.234.31

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 2300 wrote to memory of 4872	2300	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.exe	89
PID 2300 wrote to memory of 4872	2300	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.exe	89
PID 2300 wrote to memory of 4872	2300	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.exe	89
PID 4872 wrote to memory of 5104	4872	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.tmp	91
PID 4872 wrote to memory of 5104	4872	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.tmp	91
PID 4872 wrote to memory of 5104	4872	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.tmp	91
PID 4872 wrote to memory of 1676	4872	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.tmp	92
PID 4872 wrote to memory of 1676	4872	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.tmp	92
PID 4872 wrote to memory of 1676	4872	f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.tmp	92

C:\Users\Admin\AppData\Local\Temp\f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.exe
"C:\Users\Admin\AppData\Local\Temp\f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2300
- C:\Users\Admin\AppData\Local\Temp\is-MAVU2.tmp\f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-MAVU2.tmp\f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.tmp" /SL5="$401F2,1752889,54272,C:\Users\Admin\AppData\Local\Temp\f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:4872
- - C:\Users\Admin\AppData\Local\Perl Express Edition\perlee.exe
    "C:\Users\Admin\AppData\Local\Perl Express Edition\perlee.exe" -i
    3⤵
    - Executes dropped EXE
    PID:5104
- - C:\Users\Admin\AppData\Local\Perl Express Edition\perlee.exe
    "C:\Users\Admin\AppData\Local\Perl Express Edition\perlee.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1676

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\Perl Express Edition\perlee.exe

Filesize
1.8MB

MD5
489e5ba429573dcd90f070b839451517

SHA1
220b2271d2bf42e1d96da9ad43abca94e03b8ccc

SHA256
44fda4a0b7e514175d83295352976ee7b1c31a70ed33679f0bc86878be6f2543

SHA512
402bc8fd822cf725989ef9642ed3f8cc9c45903eebff898419056237a1c6c89f9b3c08fec26750948446329beb8b200e21422632fc82bcbd35beaf46de8a2b8c

Download Submit
C:\Users\Admin\AppData\Local\Perl Express Edition\perlee.exe

Filesize
768KB

MD5
83b630c6f24d47d3a9e6e95e38d4d855

SHA1
251f77f0e5d4b8b627c38aaf3c95a741bd035b64

SHA256
dd3c2fe414f75ce06f0b8c64c1f807f3483ebaa5285c3fd4a65764fd25d227e8

SHA512
0436ed71dff51ffb9c0a167a7b00eda02a876058e101feb248e0fc2616a6fc5defc666da558dd0170b242aaf66f33839b4ce4e30baab9794e17bfeac7634b2e8

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MAVU2.tmp\f1bcc94e06025c2c2ee643b5d3523e6a65ea17f6de018b8b8e17053759de4e5a.tmp

Filesize
677KB

MD5
f5a1da26359092efdacccf7af90ba9b7

SHA1
2528859dd417569169aa1eef05fab24a575d578d

SHA256
a8197ff26189ba33906f666cf0fd10b30142fcb915e5c8e09ec34ae54447c49d

SHA512
bbfc4339615d8399938a60c0287bf4d0eadda8cb878c73b07643d0edaba846b531a07f9c50c8ea5e430d337a054cc9fde2a384a80a05fb8d267bb680207bd621

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MGP68.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MGP68.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/1676-90-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-69-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-100-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-96-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-93-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-84-0x0000000000870000-0x0000000000912000-memory.dmp

Filesize
648KB

Download
memory/1676-50-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-52-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-83-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-87-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-55-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-80-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-59-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-60-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-63-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-66-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-103-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-72-0x0000000000870000-0x0000000000912000-memory.dmp

Filesize
648KB

Download
memory/1676-73-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/1676-75-0x0000000000870000-0x0000000000912000-memory.dmp

Filesize
648KB

Download
memory/2300-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2300-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2300-2-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4872-56-0x0000000002340000-0x0000000002341000-memory.dmp

Filesize
4KB

Download
memory/4872-54-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4872-7-0x0000000002340000-0x0000000002341000-memory.dmp

Filesize
4KB

Download
memory/5104-48-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/5104-45-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download
memory/5104-44-0x0000000000400000-0x00000000005C6000-memory.dmp

Filesize
1.8MB

Download

Analysis

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