socks5systemz | 18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2

General

Target

18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.exe
Size

5.8MB
MD5

ac760eaf97ff184b95bb0130537d22f3
SHA1

34ce346debea4de39b700524d58183ff34302190
SHA256

18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2
SHA512

796abc18e07064715746beca2380a59310e6218a91340e9cf6ca98fe9da3bd771de63e98594d4fff1c7052e55c762698e097252a95d2fadcd6985e548b70fbb7
SSDEEP

98304:NKjj93l3hNdqgzFVlhOnBhl9GeZHWI+Zbca7zkFMKJFsuzoq6t95a4kdmp:MjjVqgzFnhAlr2txuzMtIS

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/4352-97-0x0000000000BE0000-0x0000000000C82000-memory.dmp	family_socks5systemz
behavioral2/memory/4352-126-0x0000000000BE0000-0x0000000000C82000-memory.dmp	family_socks5systemz
behavioral2/memory/4352-127-0x0000000000BE0000-0x0000000000C82000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 2 IoCs

pid	Process
1964	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp
4352	screenstudio3.exe

Loads dropped DLL 2 IoCs

pid	Process
1964	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp
4352	screenstudio3.exe

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

System Location Discovery: System Language Discovery 1 TTPs 5 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	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	screenstudio3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1964	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp
1964	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1964	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2340 wrote to memory of 1964	2340	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.exe	85
PID 2340 wrote to memory of 1964	2340	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.exe	85
PID 2340 wrote to memory of 1964	2340	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.exe	85
PID 1964 wrote to memory of 3172	1964	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp	87
PID 1964 wrote to memory of 3172	1964	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp	87
PID 1964 wrote to memory of 3172	1964	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp	87
PID 1964 wrote to memory of 4352	1964	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp	89
PID 1964 wrote to memory of 4352	1964	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp	89
PID 1964 wrote to memory of 4352	1964	18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp	89
PID 3172 wrote to memory of 4904	3172	net.exe	90
PID 3172 wrote to memory of 4904	3172	net.exe	90
PID 3172 wrote to memory of 4904	3172	net.exe	90

C:\Users\Admin\AppData\Local\Temp\18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.exe
"C:\Users\Admin\AppData\Local\Temp\18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2340
- C:\Users\Admin\AppData\Local\Temp\is-95VLA.tmp\18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-95VLA.tmp\18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp" /SL5="$80070,5818534,54272,C:\Users\Admin\AppData\Local\Temp\18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1964
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause screenstudio_11174
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3172
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause screenstudio_11174
      4⤵
      System Location Discovery: System Language Discovery
      PID:4904
- - C:\Users\Admin\AppData\Local\Screen Studio 1.42\screenstudio3.exe
    "C:\Users\Admin\AppData\Local\Screen Studio 1.42\screenstudio3.exe" -i
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:4352

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 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\Screen Studio 1.42\screenstudio3.exe

Filesize
6.6MB

MD5
cf982bdbe7b0b22007f029a24cac00cc

SHA1
54db7f914d2a55b79c5897af8cfd8f439289e2ef

SHA256
89399bb260cca725f5d6aa3ac76581fcd1baca215bc7b54d3a71144445e1d945

SHA512
a89079b901a7e3d6f253f008081afc7e8bdeba8524d92b8672c1d47cf7ff5c3c6f07e8ff55dbe85ae1477de11b82dcb28ed4ce1a8ae6ed187132cf1334c704a5

Download Submit
C:\Users\Admin\AppData\Local\Screen Studio 1.42\sqlite3.dll

Filesize
630KB

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-47844.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-95VLA.tmp\18b12f655314b498c20855118e8d0386a72656e6550070f04bebc0409341b4e2.tmp

Filesize
692KB

MD5
4d3a2bb8d7a7dfcfeee20f95757d29e4

SHA1
4ca66ee00b950e6c45c09263b0e451039c572e96

SHA256
88f7d0bc0c2cea9ac3ad806480310c9deae405ba505f6a19f9591115b6cbc57d

SHA512
920d30524b4e1bf7cb3556a578459be4e9122e8c8716e34310fd70ae1deded50bad8bf7a03a46db46557b2e5500a523511a0bb9ddacf2dd966016e98a7cc6e74

Download Submit
memory/1964-16-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/1964-74-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2340-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2340-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2340-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4352-79-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-105-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-69-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-76-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/4352-75-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-68-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-83-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-87-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-91-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-95-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-97-0x0000000000BE0000-0x0000000000C82000-memory.dmp

Filesize
648KB

Download
memory/4352-72-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-108-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-112-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-116-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-120-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-124-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-126-0x0000000000BE0000-0x0000000000C82000-memory.dmp

Filesize
648KB

Download
memory/4352-127-0x0000000000BE0000-0x0000000000C82000-memory.dmp

Filesize
648KB

Download
memory/4352-131-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download
memory/4352-135-0x0000000000400000-0x0000000000A9D000-memory.dmp

Filesize
6.6MB

Download

Analysis

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