socks5systemz | 5179029eb225a9937cc7507b084cc8418f4d84e3c99e13b5a2a0cc8fdba75bd3

General

Target

ad01c8fa6ec2371dfd9f57200f84e13a.exe
Size

6.4MB
MD5

ad01c8fa6ec2371dfd9f57200f84e13a
SHA1

0fb1d82d89253d853dcb0e5d66f4b0d2b067b48d
SHA256

5179029eb225a9937cc7507b084cc8418f4d84e3c99e13b5a2a0cc8fdba75bd3
SHA512

e46fb5132086fa003b36b0d73e94998e132a402a85ce18d8f02e6911e1a41946b11b77e7f214cb34c959ead6add677cb3842294c45e480580d66646b56b6368a
SSDEEP

98304:PX4jivxv97/nhks8jVQ9MNa3EgedZ64ymjXA7QjBMh5YwE4zwJozYyazx11:vagxvJPhks8CKaDQemzBBM4wEXoYyaR

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2976-92-0x0000000002AD0000-0x0000000002B72000-memory.dmp	family_socks5systemz
behavioral1/memory/2976-115-0x0000000002AD0000-0x0000000002B72000-memory.dmp	family_socks5systemz
behavioral1/memory/2976-116-0x0000000002AD0000-0x0000000002B72000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp
2976	avidenta32.exe

Loads dropped DLL 3 IoCs

pid	Process
3036	ad01c8fa6ec2371dfd9f57200f84e13a.exe
2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp
2352	ad01c8fa6ec2371dfd9f57200f84e13a.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

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	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	avidenta32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ad01c8fa6ec2371dfd9f57200f84e13a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ad01c8fa6ec2371dfd9f57200f84e13a.tmp

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp
2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 2352	3036	ad01c8fa6ec2371dfd9f57200f84e13a.exe	30
PID 3036 wrote to memory of 2352	3036	ad01c8fa6ec2371dfd9f57200f84e13a.exe	30
PID 3036 wrote to memory of 2352	3036	ad01c8fa6ec2371dfd9f57200f84e13a.exe	30
PID 3036 wrote to memory of 2352	3036	ad01c8fa6ec2371dfd9f57200f84e13a.exe	30
PID 3036 wrote to memory of 2352	3036	ad01c8fa6ec2371dfd9f57200f84e13a.exe	30
PID 3036 wrote to memory of 2352	3036	ad01c8fa6ec2371dfd9f57200f84e13a.exe	30
PID 3036 wrote to memory of 2352	3036	ad01c8fa6ec2371dfd9f57200f84e13a.exe	30
PID 2352 wrote to memory of 2992	2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp	31
PID 2352 wrote to memory of 2992	2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp	31
PID 2352 wrote to memory of 2992	2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp	31
PID 2352 wrote to memory of 2992	2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp	31
PID 2352 wrote to memory of 2976	2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp	33
PID 2352 wrote to memory of 2976	2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp	33
PID 2352 wrote to memory of 2976	2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp	33
PID 2352 wrote to memory of 2976	2352	ad01c8fa6ec2371dfd9f57200f84e13a.tmp	33
PID 2992 wrote to memory of 1608	2992	net.exe	34
PID 2992 wrote to memory of 1608	2992	net.exe	34
PID 2992 wrote to memory of 1608	2992	net.exe	34
PID 2992 wrote to memory of 1608	2992	net.exe	34

C:\Users\Admin\AppData\Local\Temp\ad01c8fa6ec2371dfd9f57200f84e13a.exe
"C:\Users\Admin\AppData\Local\Temp\ad01c8fa6ec2371dfd9f57200f84e13a.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3036
- C:\Users\Admin\AppData\Local\Temp\is-UJR0I.tmp\ad01c8fa6ec2371dfd9f57200f84e13a.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-UJR0I.tmp\ad01c8fa6ec2371dfd9f57200f84e13a.tmp" /SL5="$40026,5992012,721408,C:\Users\Admin\AppData\Local\Temp\ad01c8fa6ec2371dfd9f57200f84e13a.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:2352
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause avidenta_11132
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2992
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause avidenta_11132
      4⤵
      System Location Discovery: System Language Discovery
      PID:1608
- - C:\Users\Admin\AppData\Local\Avidenta 2.8.8\avidenta32.exe
    "C:\Users\Admin\AppData\Local\Avidenta 2.8.8\avidenta32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2976

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

Loading Replay Monitor...

Downloads

\Users\Admin\AppData\Local\Avidenta 2.8.8\avidenta32.exe

Filesize
3.6MB

MD5
5f301b2942d42d35402c384009767e5f

SHA1
cf7a22c7c4a3c535b1b76d8b4fd5e17b3166ff44

SHA256
7909a486fb464e8332395296b6d1930b0b2e2b008bba1e68b696d315bc5b3323

SHA512
9bf15bc5d25853aa66fdd88b1464cac2d1d58ae556bbd53506feba88df52a775835a4ec7d1aaa1a00414044c87c2299298d1d9dc5cea91125574c63bd789307b

Download Submit
\Users\Admin\AppData\Local\Temp\is-A6VT5.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-UJR0I.tmp\ad01c8fa6ec2371dfd9f57200f84e13a.tmp

Filesize
2.4MB

MD5
438f4076e92d3c839405bab4652fe2ce

SHA1
046567cf90b9e87f4b3913030e1acfc0a4341279

SHA256
ad1772bd4f07c11a626de2f257d2cc44b63ff9150be9386512840a2381e97b7e

SHA512
44985fe1773cc9d1a4ee5ed0e5bcac058c0cd064d3a1e782d9c424efeb89185528e19a177ecfafa173b76b049301d5ff95dafc0b36715a0847eec3f6b4e1506b

Download Submit
memory/2352-73-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/2352-102-0x00000000039C0000-0x0000000003D67000-memory.dmp

Filesize
3.7MB

Download
memory/2352-8-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/2352-67-0x00000000039C0000-0x0000000003D67000-memory.dmp

Filesize
3.7MB

Download
memory/2976-85-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-98-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-69-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-123-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-76-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-79-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-82-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-120-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-88-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-91-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-92-0x0000000002AD0000-0x0000000002B72000-memory.dmp

Filesize
648KB

Download
memory/2976-70-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-101-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-116-0x0000000002AD0000-0x0000000002B72000-memory.dmp

Filesize
648KB

Download
memory/2976-105-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-108-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-111-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-114-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2976-115-0x0000000002AD0000-0x0000000002B72000-memory.dmp

Filesize
648KB

Download
memory/3036-2-0x0000000000401000-0x00000000004A9000-memory.dmp

Filesize
672KB

Download
memory/3036-0-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3036-74-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download

Analysis

Sharing