socks5systemz | bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678

General

Target

bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.exe
Size

5.7MB
MD5

3e22e7d564e175e7ae7e4e2bdfe0220d
SHA1

beb731c2cbf1d3fe1a64315e5b0d0f12a3c6a6f6
SHA256

bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678
SHA512

475512fd49d6b8cc05ed5efd9089352817aa733fb0955752c512f2a7fa668a489c09ce52d0c3b61d130a0c07cc9057d9f1ab3a637ca1f9ae7be210ac083cba34
SSDEEP

98304:PX4D/j+baA0DWI/iozuradF0V3PVwqqesfu+NU9QUXwyazx11:vM/ibaA0y0iGuMe3PiquVUmiwyaR

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2968-89-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral2/memory/2968-114-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral2/memory/2968-113-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz
Executes dropped EXE 2 IoCs

Processes:

bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmpavidenta.exe

pid process

2640 bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp
2968 avidenta.exe
Loads dropped DLL 1 IoCs

Processes:

bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp

pid process

2640 bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

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

description	ioc
Destination IP	45.155.250.90

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

Processes:

bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.exebda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmpavidenta.exenet.exenet1.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	avidenta.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp

pid	process
2640	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp
2640	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp

pid process

2640 bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.exebda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmpnet.exe

description	pid	process	target process
PID 3532 wrote to memory of 2640	3532	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.exe	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp
PID 3532 wrote to memory of 2640	3532	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.exe	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp
PID 3532 wrote to memory of 2640	3532	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.exe	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp
PID 2640 wrote to memory of 2796	2640	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp	net.exe
PID 2640 wrote to memory of 2796	2640	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp	net.exe
PID 2640 wrote to memory of 2796	2640	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp	net.exe
PID 2640 wrote to memory of 2968	2640	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp	avidenta.exe
PID 2640 wrote to memory of 2968	2640	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp	avidenta.exe
PID 2640 wrote to memory of 2968	2640	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp	avidenta.exe
PID 2796 wrote to memory of 3644	2796	net.exe	net1.exe
PID 2796 wrote to memory of 3644	2796	net.exe	net1.exe
PID 2796 wrote to memory of 3644	2796	net.exe	net1.exe

C:\Users\Admin\AppData\Local\Temp\bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.exe
"C:\Users\Admin\AppData\Local\Temp\bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3532
- C:\Users\Admin\AppData\Local\Temp\is-US79K.tmp\bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-US79K.tmp\bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp" /SL5="$90050,5276717,721408,C:\Users\Admin\AppData\Local\Temp\bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.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:2640
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause avidenta_11131
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2796
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause avidenta_11131
      4⤵
      System Location Discovery: System Language Discovery
      PID:3644
- - C:\Users\Admin\AppData\Local\Avidenta 2.7.7\avidenta.exe
    "C:\Users\Admin\AppData\Local\Avidenta 2.7.7\avidenta.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2968

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

C:\Users\Admin\AppData\Local\Avidenta 2.7.7\avidenta.exe

Filesize
3.5MB

MD5
a522905c3c4210e35704bfc033e21161

SHA1
f76452c87ae44004607f7c33bb9389701c692944

SHA256
48e4f9fb2e28adbf455d091aaf996abe503c3d23e2cbece0649f3c4dafea6159

SHA512
077e62875e2551292ca48538bc60df2f7b034815be6f2c0793acb69b48629b7adf706ef90cba67db01d7942a7ddf364826036d5c21590dfc0d471667b37813bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8DCLF.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-US79K.tmp\bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp

Filesize
2.4MB

MD5
438f4076e92d3c839405bab4652fe2ce

SHA1
046567cf90b9e87f4b3913030e1acfc0a4341279

SHA256
ad1772bd4f07c11a626de2f257d2cc44b63ff9150be9386512840a2381e97b7e

SHA512
44985fe1773cc9d1a4ee5ed0e5bcac058c0cd064d3a1e782d9c424efeb89185528e19a177ecfafa173b76b049301d5ff95dafc0b36715a0847eec3f6b4e1506b

Download Submit
memory/2640-69-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/2640-6-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/2968-79-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-90-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-66-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-68-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-121-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-118-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-72-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-73-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-76-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-113-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/2968-82-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-85-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-89-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/2968-65-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-96-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-99-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-100-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-103-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-106-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-109-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-112-0x0000000000400000-0x000000000078D000-memory.dmp

Filesize
3.6MB

Download
memory/2968-114-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/3532-0-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3532-70-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3532-2-0x0000000000401000-0x00000000004A9000-memory.dmp

Filesize
672KB

Download

pid	process
2640	bda6238b6a1671e4f159146102431704d1da0e8340a7cbe5e313438ee2673678.tmp
2968	avidenta.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads