socks5systemz | ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7

General

Target

ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exe
Size

6.4MB
MD5

29a8973c5bb7f7405538727645e3251c
SHA1

f5e073c32aabde313defd5767fbe192bd3bb42fd
SHA256

ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7
SHA512

6c42f36652586c4dfabf338f35ce6a551ae187e17fe342508efc0012d6ee7d6baa841f4dfee8a8cc6ecfc5c0d8bbc6b69ce0bc6b92b70427f920a2e51dfdb39c
SSDEEP

98304:PX4upTy/0m/oUE69h1au0gzNMiYRIEkVSPCSuYkRqgOePF+uSQEIsMsyazx11:vppRmSy1V28VoC9t+DQEIYyaR

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2944-92-0x0000000002B40000-0x0000000002BE2000-memory.dmp	family_socks5systemz
behavioral1/memory/2944-116-0x0000000002B40000-0x0000000002BE2000-memory.dmp	family_socks5systemz
behavioral1/memory/2944-117-0x0000000002B40000-0x0000000002BE2000-memory.dmp	family_socks5systemz

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

Processes:

ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmpavidenta32.exe

pid process

2368 ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
2944 avidenta32.exe

Loads dropped DLL 3 IoCs

Processes:

ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exeef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp

pid	process
1688	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exe
2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.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 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

description	ioc
Destination IP	141.98.234.31

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:

ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exeef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmpavidenta32.exenet.exenet1.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	avidenta32.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:

ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp

pid	process
2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp

pid process

2368 ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exeef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmpnet.exe

description	pid	process	target process
PID 1688 wrote to memory of 2368	1688	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exe	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
PID 1688 wrote to memory of 2368	1688	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exe	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
PID 1688 wrote to memory of 2368	1688	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exe	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
PID 1688 wrote to memory of 2368	1688	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exe	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
PID 1688 wrote to memory of 2368	1688	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exe	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
PID 1688 wrote to memory of 2368	1688	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exe	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
PID 1688 wrote to memory of 2368	1688	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exe	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
PID 2368 wrote to memory of 2836	2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp	net.exe
PID 2368 wrote to memory of 2836	2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp	net.exe
PID 2368 wrote to memory of 2836	2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp	net.exe
PID 2368 wrote to memory of 2836	2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp	net.exe
PID 2368 wrote to memory of 2944	2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp	avidenta32.exe
PID 2368 wrote to memory of 2944	2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp	avidenta32.exe
PID 2368 wrote to memory of 2944	2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp	avidenta32.exe
PID 2368 wrote to memory of 2944	2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp	avidenta32.exe
PID 2836 wrote to memory of 2928	2836	net.exe	net1.exe
PID 2836 wrote to memory of 2928	2836	net.exe	net1.exe
PID 2836 wrote to memory of 2928	2836	net.exe	net1.exe
PID 2836 wrote to memory of 2928	2836	net.exe	net1.exe

C:\Users\Admin\AppData\Local\Temp\ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exe
"C:\Users\Admin\AppData\Local\Temp\ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1688
- C:\Users\Admin\AppData\Local\Temp\is-IKQS3.tmp\ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-IKQS3.tmp\ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp" /SL5="$40152,6017918,721408,C:\Users\Admin\AppData\Local\Temp\ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.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:2368
- - 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:2836
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause avidenta_11132
      4⤵
      System Location Discovery: System Language Discovery
      PID:2928
- - 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:2944

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

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

Filesize
3.6MB

MD5
54e04652c7031794c259e77457e837ea

SHA1
2a5d6112187a3f1ca78923625679bd473b365130

SHA256
bf46b1c26b82a322730426b77a114c03bace481bf68acc98976ab349d8d40885

SHA512
bfd218f225b95bd2bf0020745459f7f1a59ee0e104107d8291b0d9fd6a98844365a051376c69a0be7b999f68fadfa7bba69e6aeb00587a507d3b8eb5fa99fa4f

Download Submit
\Users\Admin\AppData\Local\Temp\is-GTA4N.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-IKQS3.tmp\ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp

Filesize
2.4MB

MD5
438f4076e92d3c839405bab4652fe2ce

SHA1
046567cf90b9e87f4b3913030e1acfc0a4341279

SHA256
ad1772bd4f07c11a626de2f257d2cc44b63ff9150be9386512840a2381e97b7e

SHA512
44985fe1773cc9d1a4ee5ed0e5bcac058c0cd064d3a1e782d9c424efeb89185528e19a177ecfafa173b76b049301d5ff95dafc0b36715a0847eec3f6b4e1506b

Download Submit
memory/1688-2-0x0000000000401000-0x00000000004A9000-memory.dmp

Filesize
672KB

Download
memory/1688-0-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/1688-73-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/2368-75-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/2368-8-0x0000000000400000-0x0000000000679000-memory.dmp

Filesize
2.5MB

Download
memory/2368-67-0x0000000003700000-0x0000000003AA7000-memory.dmp

Filesize
3.7MB

Download
memory/2368-102-0x0000000003700000-0x0000000003AA7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-85-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-101-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-79-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-82-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-70-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-88-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-91-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-92-0x0000000002B40000-0x0000000002BE2000-memory.dmp

Filesize
648KB

Download
memory/2944-98-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-76-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-69-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-103-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-106-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-109-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-112-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-115-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-116-0x0000000002B40000-0x0000000002BE2000-memory.dmp

Filesize
648KB

Download
memory/2944-117-0x0000000002B40000-0x0000000002BE2000-memory.dmp

Filesize
648KB

Download
memory/2944-121-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2944-124-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download

pid	process
2368	ef88a86d4748056e3c76556535fddfa3994eef6fc4f568f090b0b4c8551b54c7.tmp
2944	avidenta32.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads