socks5systemz | 5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f

General

Target

5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.exe
Size

4.1MB
MD5

08b4f4533262033c2a77f079c9c72949
SHA1

4f82986f1c055d475374b4f6168f7a7bcdcfe50a
SHA256

5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f
SHA512

fe3a012ac1deec8871550a2127810c5077ac8ad22503641073a10f99ac9791ea856fc331e123f0b11dcba3fbdf0d9ab56264a9287332ed7c9cdec26391096dce
SSDEEP

98304:MjzaB5KUu8ppKNBqV7xv8f5+j720l8PQH2YO5VIuvuunu5+:CaqBEpKHq38fw32LvYw5fnu5+

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/1436-105-0x00000000008F0000-0x0000000000992000-memory.dmp	family_socks5systemz
behavioral2/memory/1436-129-0x00000000008F0000-0x0000000000992000-memory.dmp	family_socks5systemz
behavioral2/memory/1436-130-0x00000000008F0000-0x0000000000992000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
1692	5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.tmp
1436	dpfreevideoconverter3264.exe

Loads dropped DLL 1 IoCs

pid	Process
1692	5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.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

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	5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dpfreevideoconverter3264.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5112 wrote to memory of 1692	5112	5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.exe	85
PID 5112 wrote to memory of 1692	5112	5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.exe	85
PID 5112 wrote to memory of 1692	5112	5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.exe	85
PID 1692 wrote to memory of 1436	1692	5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.tmp	86
PID 1692 wrote to memory of 1436	1692	5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.tmp	86
PID 1692 wrote to memory of 1436	1692	5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.tmp	86

C:\Users\Admin\AppData\Local\Temp\5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.exe
"C:\Users\Admin\AppData\Local\Temp\5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5112
- C:\Users\Admin\AppData\Local\Temp\is-KFSGL.tmp\5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-KFSGL.tmp\5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.tmp" /SL5="$5021E,4073274,53248,C:\Users\Admin\AppData\Local\Temp\5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1692
- - C:\Users\Admin\AppData\Local\DP Free Video Converter\dpfreevideoconverter3264.exe
    "C:\Users\Admin\AppData\Local\DP Free Video Converter\dpfreevideoconverter3264.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1436

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\DP Free Video Converter\dpfreevideoconverter3264.exe

Filesize
2.7MB

MD5
ee5ecf7045884a8234c995c6d38b7a90

SHA1
8d238f0d5d1e80102401e294c7cfe4f297482d2e

SHA256
01cd6df5a5b08123ea6a0ca47f998a5215635c062a002c9c7f056fdef76843d8

SHA512
c68c3d07aee6942f86a41c21612e16ef3dc9bb910ed60c9deeddda3f3e7e95ec98d1e4989f38b02093348d64464459e00f22c5906c1b298058bf283af902badb

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KFSGL.tmp\5b9c4eb3b57004c472245f3483fe5065f47b992543ff0d7ce3aaf100ab59088f.tmp

Filesize
665KB

MD5
161d763bd5aafafdda6e2d06cc832d98

SHA1
380571e92161502823fd8b6bfd7f8ea88dd4b9f6

SHA256
e1dbab9b76d63f18fa1927f709f033d2cc62c89ad3633abbafbd0d0a5f1a8f22

SHA512
3cc3b34bad30faff783d77438f663f98f9d2d86e63d0581dd75313813570502820df16bee0e3aa07e80dc8f602b704a501e77951c1b21b410e5285a17b0911cd

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-UND39.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1436-92-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-116-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-137-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-79-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-80-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-81-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-134-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-130-0x00000000008F0000-0x0000000000992000-memory.dmp

Filesize
648KB

Download
memory/1436-87-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-89-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-88-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-129-0x00000000008F0000-0x0000000000992000-memory.dmp

Filesize
648KB

Download
memory/1436-95-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-98-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-101-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-106-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-105-0x00000000008F0000-0x0000000000992000-memory.dmp

Filesize
648KB

Download
memory/1436-112-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-113-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-128-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-119-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-122-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1436-125-0x0000000000400000-0x00000000006B5000-memory.dmp

Filesize
2.7MB

Download
memory/1692-10-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/1692-84-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

Download
memory/5112-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5112-85-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5112-1-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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