socks5systemz | 02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18

General

Target

02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.exe
Size

5.1MB
MD5

258cb65b2b0594931af16a2e2e4f8df6
SHA1

1693fe87579d44cb180b5b0f6dfaaf6b51488b75
SHA256

02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18
SHA512

ab6cf6385574fb646e27928eef209b9cb4cc432870e7d736dfef2414e0887d3b787c1fc7ce98b98ddf80b2c7686a990eceb18bee522f9e6c79058c053dc55e32
SSDEEP

98304:C3FRIuPPqB12guaOw/+UTBFKD3g4ZnX3HoK74bLa3+EC9iV4orr4dhTsQx2Yy:nu3qBwguaf+iBFLSYh+CG+iQAYy

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3860-86-0x00000000029E0000-0x0000000002A82000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1400	02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.tmp
1436	3gpvideoconverter32_64.exe
3860	3gpvideoconverter32_64.exe

Loads dropped DLL 1 IoCs

pid	Process
1400	02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.tmp

Unexpected DNS network traffic destination 3 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
Destination IP	152.89.198.214
Destination IP	91.211.247.248

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
1400	02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3716 wrote to memory of 1400	3716	02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.exe	77
PID 3716 wrote to memory of 1400	3716	02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.exe	77
PID 3716 wrote to memory of 1400	3716	02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.exe	77
PID 1400 wrote to memory of 1436	1400	02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.tmp	78
PID 1400 wrote to memory of 1436	1400	02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.tmp	78
PID 1400 wrote to memory of 1436	1400	02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.tmp	78
PID 1400 wrote to memory of 3860	1400	02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.tmp	79
PID 1400 wrote to memory of 3860	1400	02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.tmp	79
PID 1400 wrote to memory of 3860	1400	02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.tmp	79

C:\Users\Admin\AppData\Local\Temp\02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.exe
"C:\Users\Admin\AppData\Local\Temp\02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3716
- C:\Users\Admin\AppData\Local\Temp\is-JV93C.tmp\02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-JV93C.tmp\02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.tmp" /SL5="$40202,5121635,54272,C:\Users\Admin\AppData\Local\Temp\02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1400
- - C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32_64.exe
    "C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32_64.exe" -i
    3⤵
    - Executes dropped EXE
    PID:1436
- - C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32_64.exe
    "C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32_64.exe" -s
    3⤵
    - Executes dropped EXE
    PID:3860

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\3GP Video Converter\3gpvideoconverter32_64.exe

Filesize
3.7MB

MD5
8693d031b3b4b48c267220e988bb86f1

SHA1
f937a95ae3bc9238d003c92b346163b9b0800f10

SHA256
32e10386250b42d2d6eae2ce7e2693e32cbe709bbfe698adca444a9da94615d3

SHA512
e5e2b37318b814de1fb496b4ece12298ec9efa923108dd051b18897c0dba95923fa731738141f2155b2f643135d49dd0c10e5431dc5472e82b8d1eb6f87be328

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-IBPB0.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-JV93C.tmp\02a6d61c9cebf8c920cc07d34236c7414e495ee2a63702dac6d0f521c4c0af18.tmp

Filesize
680KB

MD5
2a166cf3f79bcdcd09875b6471f465c4

SHA1
cc784af9f1a9ecfd75194c1ed7d6123aecf4d96e

SHA256
ab5cd059d2aea8797684ef8d084e595d990c0940ddf28d7af5d35667fec34961

SHA512
9f3706f79ddd40501b5d63db893ad63086b20be8e5f53ba6a80fad3dc5904eba9711898fd8f7e1b576874a676d4de3a3f257dbe1328f2720fd70aac13a5d46c2

Download Submit
memory/1400-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1400-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1436-60-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/1436-61-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/1436-65-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/1436-64-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3716-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3716-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3716-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3860-74-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-89-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-68-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-77-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-80-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-83-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-86-0x00000000029E0000-0x0000000002A82000-memory.dmp

Filesize
648KB

Download
memory/3860-71-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-94-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-97-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-100-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-103-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-106-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-109-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-112-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download
memory/3860-115-0x0000000000400000-0x00000000007B3000-memory.dmp

Filesize
3.7MB

Download

Analysis

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