socks5systemz | 9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4ef

General

Target

9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.exe
Size

5.4MB
MD5

676aff364a9d0742a346f55284122400
SHA1

22a47f4cf9b525a3668554d7b65542f13c285476
SHA256

9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4ef
SHA512

f1d472c263c80c5af62113a6863ad144b39eb70e261470dc074edee4c0809b3d1dbecacd7d324ce08e1a805e8ef8a1fecf9533c91271ca441b26ad208b192072
SSDEEP

98304:Cg9ciUCW/ASFdR8kW1bfTAdVi85A5sft05YSb1PMzCzM3vujC3OLQx8:X9mASFdR8kWhz8q2fK5Yyg34LLQS

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/928-189-0x0000000000950000-0x00000000009F2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
2596	9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.tmp
928	mp4downloader.exe

Loads dropped DLL 1 IoCs

pid	Process
2596	9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.tmp

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

System Location Discovery: System Language Discovery 1 TTPs 3 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	9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mp4downloader.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2596	9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.tmp

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2864 wrote to memory of 2596	2864	9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.exe	84
PID 2864 wrote to memory of 2596	2864	9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.exe	84
PID 2864 wrote to memory of 2596	2864	9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.exe	84
PID 2596 wrote to memory of 928	2596	9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.tmp	87
PID 2596 wrote to memory of 928	2596	9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.tmp	87
PID 2596 wrote to memory of 928	2596	9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.tmp	87

C:\Users\Admin\AppData\Local\Temp\9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.exe
"C:\Users\Admin\AppData\Local\Temp\9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2864
- C:\Users\Admin\AppData\Local\Temp\is-V5FK7.tmp\9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-V5FK7.tmp\9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.tmp" /SL5="$E004A,5433480,54272,C:\Users\Admin\AppData\Local\Temp\9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2596
- - C:\Users\Admin\AppData\Local\MP4 Downloader 3.22.0\mp4downloader.exe
    "C:\Users\Admin\AppData\Local\MP4 Downloader 3.22.0\mp4downloader.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:928

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

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\MP4 Downloader 3.22.0\mp4downloader.exe

Filesize
2.4MB

MD5
5d876b2425202df2e8882668a8b21293

SHA1
e6b91564af75663073d2041f7bfbdcb8078cbb66

SHA256
0db4777c394c0530f51b43864ed487e487fd32c75ce29e4dbaae8286bc4b1522

SHA512
db02d58c1ce1652ee84b06c8ee472dda7bb04103310aea4ead3cb5129fa2de8721810aeec5ff8efced4cf074424315454966c572319c2246c0b0670e7908c0d5

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-B4O78.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-V5FK7.tmp\9dfe5befe93a5b5ba4c0ca24ab69c0f37181044e821aba68f10650726503d4efN.tmp

Filesize
680KB

MD5
d5a9d5d4aa75db7b81aca1f5affb3037

SHA1
8ca8241e6787c5ba86e12037446dbf4cb6e9f129

SHA256
2738b05766f70b3e6ce2acbfaca069f7c9d87ba6e32e9bb05ac7c6fd87427e6e

SHA512
1ba9d59ca0d605f8b440abcc337dfad56676f6291fc8eecc99d73022ebf3b8b264f26543b4dffcb5ec196e403f96e9ca150f5c2a64602d95362db9ef290e01fe

Download Submit
memory/928-173-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-196-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-209-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-164-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-165-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-168-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-206-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-203-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-172-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-200-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-176-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-179-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-182-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-185-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-189-0x0000000000950000-0x00000000009F2000-memory.dmp

Filesize
648KB

Download
memory/928-190-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/928-199-0x0000000000400000-0x000000000066F000-memory.dmp

Filesize
2.4MB

Download
memory/2596-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2596-169-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2864-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2864-170-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2864-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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