socks5systemz | 1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8

General

Target

1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.exe
Size

5.0MB
MD5

e564edac5640623ea9e926d9cc99b3e5
SHA1

a4969eb3289cf2060a36ffc95afd84535e8d2653
SHA256

1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8
SHA512

2ca712cdb0529cc2a855e4004f461f796b923045a709a8a5ef28fa0d46b44ea0a8e9f4ed024d86eebf854ab13b016f32c44fe1f707957baf2b7a7fdcc76fc000
SSDEEP

98304:CN0/bHz7ZwqEMEndLBU27G6IVFXe7orRLY3Rd5bH+ErrY/KZrJtQx3:dCwkhyiG6IIomhT5PYSZrJtQF

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/2496-85-0x0000000002940000-0x00000000029E2000-memory.dmp	family_socks5systemz
behavioral2/memory/2496-108-0x0000000002940000-0x00000000029E2000-memory.dmp	family_socks5systemz
behavioral2/memory/2496-109-0x0000000002940000-0x00000000029E2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
5044	1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.tmp
3676	goldenmusicalvariety32.exe
2496	goldenmusicalvariety32.exe

Loads dropped DLL 1 IoCs

pid	Process
5044	1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.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	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
5044	1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4264 wrote to memory of 5044	4264	1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.exe	78
PID 4264 wrote to memory of 5044	4264	1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.exe	78
PID 4264 wrote to memory of 5044	4264	1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.exe	78
PID 5044 wrote to memory of 3676	5044	1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.tmp	79
PID 5044 wrote to memory of 3676	5044	1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.tmp	79
PID 5044 wrote to memory of 3676	5044	1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.tmp	79
PID 5044 wrote to memory of 2496	5044	1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.tmp	80
PID 5044 wrote to memory of 2496	5044	1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.tmp	80
PID 5044 wrote to memory of 2496	5044	1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.tmp	80

C:\Users\Admin\AppData\Local\Temp\1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.exe
"C:\Users\Admin\AppData\Local\Temp\1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4264
- C:\Users\Admin\AppData\Local\Temp\is-UJKPE.tmp\1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-UJKPE.tmp\1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.tmp" /SL5="$50106,4974287,54272,C:\Users\Admin\AppData\Local\Temp\1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:5044
- - C:\Users\Admin\AppData\Local\Golden Musical Variety\goldenmusicalvariety32.exe
    "C:\Users\Admin\AppData\Local\Golden Musical Variety\goldenmusicalvariety32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:3676
- - C:\Users\Admin\AppData\Local\Golden Musical Variety\goldenmusicalvariety32.exe
    "C:\Users\Admin\AppData\Local\Golden Musical Variety\goldenmusicalvariety32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2496

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\Golden Musical Variety\goldenmusicalvariety32.exe

Filesize
3.8MB

MD5
7c676a1123026eb39f2ad0cfd7f8071a

SHA1
eefce84fe2feee0bae6ebfad40891594baebe993

SHA256
72850c7cc4f1b54977a647b53bae80f504cfb531f80f7ddf6906c725b8115ed8

SHA512
26e07826c5597f26b02275726957aa23426e58514d4e680bf175e7d8e21df9e888e4fcb4318edb6fada3cd1b2b9c70a4a84673806f260ec88b5f6a08cf9dc466

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-R8D0K.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-UJKPE.tmp\1fe30693ae9484c4eddccac4d760cf1cad545d80c27b11cb3da827e2a13852a8.tmp

Filesize
680KB

MD5
4e832b1536c3b42b35f27b5ae874127c

SHA1
ee2231eb06cda0e29213b0bdd98c8a80c67f2115

SHA256
c9d9f0afdd9e1e4f2d192b54385880c0cb9825b67ba0717c8d220d09b9087580

SHA512
ccebe751ddffc609ca42baae4f18c6d16203f5aa1f748dcac39c20977563fed41985e70905b4ee3b763aff598dbf601bf438ab1e0cb9bbb2ea6ad11f3b9ac896

Download Submit
memory/2496-98-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-101-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-116-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-112-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-109-0x0000000002940000-0x00000000029E2000-memory.dmp

Filesize
648KB

Download
memory/2496-108-0x0000000002940000-0x00000000029E2000-memory.dmp

Filesize
648KB

Download
memory/2496-67-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-107-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-104-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-70-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-73-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-76-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-79-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-82-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-85-0x0000000002940000-0x00000000029E2000-memory.dmp

Filesize
648KB

Download
memory/2496-87-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-92-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/2496-95-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/3676-61-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/3676-64-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/3676-60-0x0000000000400000-0x00000000007D8000-memory.dmp

Filesize
3.8MB

Download
memory/4264-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4264-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4264-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/5044-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5044-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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