socks5systemz | 9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d

General

Target

9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.exe
Size

4.5MB
MD5

07d1a87a4ffcf5d632190d8cdfedbc81
SHA1

f9bb42f040d9262f6367307a759f3a4ea4e7382c
SHA256

9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d
SHA512

f4b7c18129402533376f7de905af069637aab919d521f28c8febe11dad215e47f2cbcb7fbe97c9af1af7fa647362589087dad2b4ecd084ac5a8cda7a86d8c7bf
SSDEEP

98304:m5XeR8zd469Wa7fjYgTvLUL15Y+7zvDQkja8XRXzY7J:Eeu4Jarj255Y+7XQkvBXsF

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/3604-86-0x0000000000860000-0x0000000000902000-memory.dmp	family_socks5systemz
behavioral1/memory/3604-109-0x0000000000860000-0x0000000000902000-memory.dmp	family_socks5systemz
behavioral1/memory/3604-110-0x0000000000860000-0x0000000000902000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4160	9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp
2076	submoremediaplayer32.exe
3604	submoremediaplayer32.exe

Loads dropped DLL 1 IoCs

pid	Process
4160	9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.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 FindShellTrayWindow 1 IoCs

pid	Process
4160	9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 968 wrote to memory of 4160	968	9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.exe	83
PID 968 wrote to memory of 4160	968	9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.exe	83
PID 968 wrote to memory of 4160	968	9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.exe	83
PID 4160 wrote to memory of 2076	4160	9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp	85
PID 4160 wrote to memory of 2076	4160	9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp	85
PID 4160 wrote to memory of 2076	4160	9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp	85
PID 4160 wrote to memory of 3604	4160	9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp	88
PID 4160 wrote to memory of 3604	4160	9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp	88
PID 4160 wrote to memory of 3604	4160	9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp	88

C:\Users\Admin\AppData\Local\Temp\9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.exe
"C:\Users\Admin\AppData\Local\Temp\9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:968
- C:\Users\Admin\AppData\Local\Temp\is-FLBTT.tmp\9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-FLBTT.tmp\9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp" /SL5="$80054,4476623,54272,C:\Users\Admin\AppData\Local\Temp\9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4160
- - C:\Users\Admin\AppData\Local\Submore Media Player\submoremediaplayer32.exe
    "C:\Users\Admin\AppData\Local\Submore Media Player\submoremediaplayer32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2076
- - C:\Users\Admin\AppData\Local\Submore Media Player\submoremediaplayer32.exe
    "C:\Users\Admin\AppData\Local\Submore Media Player\submoremediaplayer32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3604

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\Submore Media Player\submoremediaplayer32.exe

Filesize
2.9MB

MD5
a765f298d543351b32d4717d6200eca7

SHA1
75acc90c820cc27fe10dcab60741eca4f576e0f6

SHA256
db56d04667494189799ae387af9443f8129fb79fc645a1dc645de61e655e0c6d

SHA512
e341c7b94517ae8405d34f82cc70a945c1ae1f7a4804b16e63d8d7d6f70f96c0f8b490f886e162b4e8a4e495aeef463fa09fa70283f6c801740fd33f444fa986

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-FLBTT.tmp\9cb95b31fa90da4b9ae112e48c5b5e86bbe719e61995715b5c502b94d8be562d.tmp

Filesize
680KB

MD5
f6db8acbb8c91e6153cfa8e15e895e93

SHA1
cbee583d7f736fc293724fdf75ecd9ab5373be92

SHA256
dea6f606992fd2691c1943cd4e59066bf19c0b436af9d018c2f724d22da20962

SHA512
f0a71677491b805bd95bc0f0584ee97980801f837f476aab23a2a6939304cc42373b61f3f4968519e1f0f668fbf51e9a7765b8f6779d93e783214d80a8b1b24f

Download Submit
memory/968-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/968-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/968-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2076-59-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/2076-60-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/2076-61-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/2076-65-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-74-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-88-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-117-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-71-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-114-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-77-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-80-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-83-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-86-0x0000000000860000-0x0000000000902000-memory.dmp

Filesize
648KB

Download
memory/3604-68-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-93-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-96-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-99-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-102-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-105-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-108-0x0000000000400000-0x00000000006E2000-memory.dmp

Filesize
2.9MB

Download
memory/3604-109-0x0000000000860000-0x0000000000902000-memory.dmp

Filesize
648KB

Download
memory/3604-110-0x0000000000860000-0x0000000000902000-memory.dmp

Filesize
648KB

Download
memory/4160-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4160-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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