socks5systemz | 22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d

General

Target

22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.exe
Size

3.5MB
MD5

c1e8826c0e62242106b67a1b00441c82
SHA1

0a19ae118933d63083a61d2fdd907dafe2b7ce8c
SHA256

22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d
SHA512

5e21aef12e9c073a86cece577b2fd8d8780de1d613a90e5be72b035d04d88b3778e401af6d1091fb9ca60b1d4172fa6a68c8a6e61750efd60f32e0d042ec7956
SSDEEP

98304:9/wAkPaQ0+MHU89Lz8zvTUHYWNgUW29xTJ1:dwJ50FHU8pz8bgxNz9hJ1

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3840-75-0x00000000007A0000-0x0000000000842000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
212	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.tmp
3840	newstar32.exe

Loads dropped DLL 1 IoCs

pid	Process
212	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.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	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 3 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	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	newstar32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
212	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.tmp
212	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
212	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.tmp

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4188 wrote to memory of 212	4188	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.exe	82
PID 4188 wrote to memory of 212	4188	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.exe	82
PID 4188 wrote to memory of 212	4188	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.exe	82
PID 212 wrote to memory of 3840	212	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.tmp	83
PID 212 wrote to memory of 3840	212	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.tmp	83
PID 212 wrote to memory of 3840	212	22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.tmp	83

C:\Users\Admin\AppData\Local\Temp\22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.exe
"C:\Users\Admin\AppData\Local\Temp\22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4188
- C:\Users\Admin\AppData\Local\Temp\is-5H7DL.tmp\22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-5H7DL.tmp\22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.tmp" /SL5="$6022E,3361550,54272,C:\Users\Admin\AppData\Local\Temp\22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.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:212
- - C:\Users\Admin\AppData\Local\NewStar\newstar32.exe
    "C:\Users\Admin\AppData\Local\NewStar\newstar32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3840

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\NewStar\newstar32.exe

Filesize
2.3MB

MD5
1c4b86a6045fc968e1852166e070d8a6

SHA1
cbaf8ae5e571aa1f592f53d85b319bc3d4fb45b7

SHA256
69bce3dcab66b0daa3b15e5b2af029015ffa5ac25e1f3a8b553c90a46aadb008

SHA512
7dae8b10a6c92d9a8a788bbe265c4215b79008ba1697ddd99222d9eb2e7eda39b5629f1e20311b4fbc5211b9bf1fcbf1783e967d69f22787ae18ddfaaff46449

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-2A7SS.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5H7DL.tmp\22aee22dda57ee1891a90019d4e84a173c73dcdc12f74d0064c6439fb4f4c81d.tmp

Filesize
689KB

MD5
d9666f295626145187390f6b4fe3cdbc

SHA1
92a309eed9bb115ff63ea6bff88ee24d96f17053

SHA256
135d83ae5833260c8d5bfae3ce9eb77f4b5f7246c317b34a61dcbb9bdeec7e31

SHA512
acb5911726be1f3144df1ce0c3c44889d7993a838e51627d282f2669f1d9e8f3d4c5b6cfa5323994c88a5cf325564e995db499c6ac4c09176b42b7b09283990c

Download Submit
memory/212-55-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/212-7-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3840-59-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-71-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-51-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-54-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-104-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-101-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-58-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-97-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-62-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-65-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-68-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-50-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-76-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-75-0x00000000007A0000-0x0000000000842000-memory.dmp

Filesize
648KB

Download
memory/3840-82-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-85-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-88-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-91-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/3840-94-0x0000000000400000-0x0000000000650000-memory.dmp

Filesize
2.3MB

Download
memory/4188-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4188-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4188-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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