socks5systemz | ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076

General

Target

ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.exe
Size

4.1MB
MD5

11932a62837778c4a1d879a5939af9bd
SHA1

7f0b25aa617a4bc511985272fb6fe821ebf79565
SHA256

ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076
SHA512

64c682468f5d37d4f981b44ce559e4a17a12c3936b6d719eec58dd9b435c70e5e96e89f7e0cf6f7491b5587fe064fc306cc04a1fb855933c2d0ee1fe3929dcac
SSDEEP

98304:ImLznTcHBqvn0oBmR85me0uJ5ffNsxZWEu+l1:rbTY0n0yW83XhEu+

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/844-101-0x0000000000850000-0x00000000008F2000-memory.dmp	family_socks5systemz
behavioral2/memory/844-126-0x0000000000850000-0x00000000008F2000-memory.dmp	family_socks5systemz
behavioral2/memory/844-127-0x0000000000850000-0x00000000008F2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
4716	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.tmp
844	ascreenrecorder.exe

Loads dropped DLL 1 IoCs

pid	Process
4716	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.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	ascreenrecorder.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.tmp

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4716	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.tmp
4716	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4716	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.tmp

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2840 wrote to memory of 4716	2840	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.exe	84
PID 2840 wrote to memory of 4716	2840	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.exe	84
PID 2840 wrote to memory of 4716	2840	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.exe	84
PID 4716 wrote to memory of 844	4716	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.tmp	88
PID 4716 wrote to memory of 844	4716	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.tmp	88
PID 4716 wrote to memory of 844	4716	ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.tmp	88

C:\Users\Admin\AppData\Local\Temp\ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.exe
"C:\Users\Admin\AppData\Local\Temp\ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2840
- C:\Users\Admin\AppData\Local\Temp\is-AS4IM.tmp\ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-AS4IM.tmp\ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.tmp" /SL5="$60272,4036959,54272,C:\Users\Admin\AppData\Local\Temp\ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.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:4716
- - C:\Users\Admin\AppData\Local\AScreenRecorder\ascreenrecorder.exe
    "C:\Users\Admin\AppData\Local\AScreenRecorder\ascreenrecorder.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:844

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\AScreenRecorder\ascreenrecorder.exe

Filesize
2.7MB

MD5
4e1ad8a4585a22efc119714bbd788ebc

SHA1
a4f4e866618d288fccda81432392e802d333fdba

SHA256
1aa12b8a5ee26ce336d1fc17d60e639fc397be3001d9f6f29b42e46a2a5fdb5a

SHA512
6cbd2a5088f2e088bb7b0dde2c503f11d5d5b845d490eda9c65dd1a69055d02ea996653371d8e94ffebb062a5719026282b6df26a616d47ea2ede1e2ca386565

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-AS4IM.tmp\ce3ae3e7cc705dd783c409c939999c238c5503d5d09c61263cea9f2a88a0d076.tmp

Filesize
689KB

MD5
81d7b7f78525202d800f7290bfb7aed9

SHA1
b0c83e4e7e4386222d0857930e2dc9bf8b12f1b8

SHA256
3f7767e5aea0d45eaa51739d673175ca3eb0f4eaffcaf4efcc28ad96dec59df8

SHA512
8a8cbc2ede676b9e10fcecc7962cabb48862e15125ff597280663a23864b1700648443c7ca551f5bf863e825496f8bbf2f6912b26fd63012b70e1c76a3d9f6a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MN4TM.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/844-91-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-113-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-134-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-76-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-77-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-80-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-131-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-127-0x0000000000850000-0x00000000008F2000-memory.dmp

Filesize
648KB

Download
memory/844-84-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-85-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-88-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-126-0x0000000000850000-0x00000000008F2000-memory.dmp

Filesize
648KB

Download
memory/844-94-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-97-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-101-0x0000000000850000-0x00000000008F2000-memory.dmp

Filesize
648KB

Download
memory/844-102-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-108-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-109-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-112-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-125-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-116-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-119-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/844-122-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/2840-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2840-82-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2840-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4716-7-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/4716-81-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download

Analysis

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