socks5systemz | 571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7

General

Target

571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.exe
Size

5.2MB
MD5

1794f1bfe8d18f62c05cc6f5de9a412d
SHA1

170d8912ccab779e69d6234ce5d53721a0f06141
SHA256

571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7
SHA512

2feede8f799ce4eca922ec1012518ad904fa5dc55889bacc4bbaf2a547e5509c876670e557eb8b20bd5e20a5e5f6e11792f063b854709b8a987e8be2a6f806d1
SSDEEP

98304:CruRsMgxnlUCbNq3gWLPWXT63QACAfwdBlGl1BVASMQtOpNHnTQx3xw:CMgxHIgmUTuCrk18SMMOp9nTQrw

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/556-87-0x0000000000A00000-0x0000000000AA2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4508	571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.tmp
4680	3gpvideoconverter32.exe
556	3gpvideoconverter32.exe

Loads dropped DLL 1 IoCs

pid	Process
4508	571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.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
4508	571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1560 wrote to memory of 4508	1560	571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.exe	84
PID 1560 wrote to memory of 4508	1560	571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.exe	84
PID 1560 wrote to memory of 4508	1560	571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.exe	84
PID 4508 wrote to memory of 4680	4508	571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.tmp	86
PID 4508 wrote to memory of 4680	4508	571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.tmp	86
PID 4508 wrote to memory of 4680	4508	571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.tmp	86
PID 4508 wrote to memory of 556	4508	571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.tmp	88
PID 4508 wrote to memory of 556	4508	571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.tmp	88
PID 4508 wrote to memory of 556	4508	571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.tmp	88

C:\Users\Admin\AppData\Local\Temp\571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.exe
"C:\Users\Admin\AppData\Local\Temp\571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1560
- C:\Users\Admin\AppData\Local\Temp\is-4H301.tmp\571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-4H301.tmp\571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.tmp" /SL5="$C0068,5239488,54272,C:\Users\Admin\AppData\Local\Temp\571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4508
- - C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe
    "C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4680
- - C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe
    "C:\Users\Admin\AppData\Local\3GP Video Converter\3gpvideoconverter32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:556

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.exe

Filesize
4.8MB

MD5
24138c32dda8816ae95500802f565b77

SHA1
b76a30cce740c75051bacea0d6927d5919207e49

SHA256
aacfc78b2ff98549043a8ef9260ac556bea68ed7a20b651b1fa2d41552c6e759

SHA512
cb80b97aae4b85bd98672f301fff52ff0e1c67d597b455d0af1500343c6f2e7ef0a2e5010d0cc75c5e1f325d2f07ec366bd65660e5e84e85c1ac4a14246b1e65

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-4H301.tmp\571e855e6ee7a37470eb115e899e229c14a378778998b756469ab721c2bea5b7.tmp

Filesize
680KB

MD5
db83d289dcc1ffc4fa03a45e1d2b4ef0

SHA1
d17603a722a4ec3fc1a1355d37f4d67f45d53f9b

SHA256
2b896eb3adf00308929d9afbb0ad1a77cb0ac007422a325ae56a2034f3e87b4d

SHA512
0807bb559572d023d2bff2a18b168f78949dec230e702a2d581b5a1f161277e43735261f1a205cad6fd35592d1be5f18136ea8f52a2e01a4949a58f390034813

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/556-96-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-99-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-114-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-111-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-108-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-105-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-66-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-102-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-93-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-70-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-73-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-74-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-77-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-80-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-83-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-86-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/556-87-0x0000000000A00000-0x0000000000AA2000-memory.dmp

Filesize
648KB

Download
memory/1560-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1560-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1560-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4508-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4508-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4680-64-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/4680-61-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download
memory/4680-60-0x0000000000400000-0x00000000008D8000-memory.dmp

Filesize
4.8MB

Download

Analysis

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