socks5systemz | 934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626

General

Target

934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.exe
Size

4.5MB
MD5

1daa36cbcb52e593b49dbd2411762e2b
SHA1

00cd18be3187437eb9152c8dd96e8f6386b6e5f9
SHA256

934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626
SHA512

74fc869293a3d7b5b08d48a08fa9e2242d3f415dd69bc4db95f3c2a560a79f09a9447bdb456a19d63e831238e661cd11330e0c4bf617087cf4b64a2852aa440e
SSDEEP

98304:CIsgmXXZCkh+kPN/xtaeVDPilMFG1urtWDY0RQiWp/8grmAkRUza7I:xsRXFh+e/6IGlMFXoXKiWpUgxha7I

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2460-77-0x0000000000AB0000-0x0000000000B52000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
1088	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.tmp
2468	mobilemediaconverter.exe
2460	mobilemediaconverter.exe

Loads dropped DLL 1 IoCs

pid	Process
1088	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.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	141.98.234.31

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 4 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	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mobilemediaconverter.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mobilemediaconverter.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4172 wrote to memory of 1088	4172	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.exe	86
PID 4172 wrote to memory of 1088	4172	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.exe	86
PID 4172 wrote to memory of 1088	4172	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.exe	86
PID 1088 wrote to memory of 2468	1088	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.tmp	87
PID 1088 wrote to memory of 2468	1088	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.tmp	87
PID 1088 wrote to memory of 2468	1088	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.tmp	87
PID 1088 wrote to memory of 2460	1088	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.tmp	91
PID 1088 wrote to memory of 2460	1088	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.tmp	91
PID 1088 wrote to memory of 2460	1088	934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.tmp	91

C:\Users\Admin\AppData\Local\Temp\934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.exe
"C:\Users\Admin\AppData\Local\Temp\934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4172
- C:\Users\Admin\AppData\Local\Temp\is-QJDLU.tmp\934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-QJDLU.tmp\934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.tmp" /SL5="$602B4,4431007,54272,C:\Users\Admin\AppData\Local\Temp\934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1088
- - C:\Users\Admin\AppData\Local\Mobile Media Converter\mobilemediaconverter.exe
    "C:\Users\Admin\AppData\Local\Mobile Media Converter\mobilemediaconverter.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2468
- - C:\Users\Admin\AppData\Local\Mobile Media Converter\mobilemediaconverter.exe
    "C:\Users\Admin\AppData\Local\Mobile Media Converter\mobilemediaconverter.exe" -s
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2460

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\Mobile Media Converter\mobilemediaconverter.exe

Filesize
4.1MB

MD5
f5dd9d7e43940a804f64c5139fcda98a

SHA1
12ab6589b43d7b6493125961fcd2c3b2c140723e

SHA256
6f0ac23bde4b125f22bb62924a195f312738cb7e6545ce2baca674a07916456f

SHA512
bcbcaf375613983e52035e8cf594769e52446aeac28219ab8a4074c53eac092d802020352517887a6c5370e032a12ed553688b27846d345ff6f35822c6890c2d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5MQ8O.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-QJDLU.tmp\934d38ab139e0469e714d3564a57804820e25eec9ac83228261706bfe4620626.tmp

Filesize
680KB

MD5
c94d4de11404aa36e29ab12759013cd4

SHA1
0aa99faabceae06fa6ebecbc522542380764b67e

SHA256
b6f0132ffea774677948fe4f1bffdedba160b83a02e6907e9523986399887434

SHA512
060609ea22847da3455c695658bb55fa1e42721d2d2a817050ef005fbc0e2b7b35699bdcfd29d9efcf85af98de3fe0f051fa1bac3bb3ca8137699ebe13473206

Download Submit
memory/1088-61-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1088-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2460-81-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-90-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-106-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-103-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-99-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-96-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-93-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-62-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-65-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-68-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-71-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-74-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-77-0x0000000000AB0000-0x0000000000B52000-memory.dmp

Filesize
648KB

Download
memory/2460-87-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2460-84-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2468-52-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2468-56-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2468-57-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/2468-53-0x0000000000400000-0x0000000000815000-memory.dmp

Filesize
4.1MB

Download
memory/4172-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4172-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4172-60-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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