socks5systemz | d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6

General

Target

d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exe
Size

5.9MB
MD5

3bbcfb33c79725389026472484d4897c
SHA1

9f1159eb12a22555633e808a970acc55cf731e60
SHA256

d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6
SHA512

62f1620bb34c49c4807faf2ccffd94babbed7331d4acdc0d679e55cb7c20f935924ec3cf7fbc5dc26be2846e1f500336da3b6b4dd9f255375a0898145874784e
SSDEEP

98304:4opEggevurPh27HclDdnnlnNdkPXFAT671TlbTczm4Ha/37KPi+:zEgoPhcuDBlnnkP1Z1TlfcKea+

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2736-107-0x0000000000B00000-0x0000000000BA2000-memory.dmp	family_socks5systemz
behavioral2/memory/2736-131-0x0000000000B00000-0x0000000000BA2000-memory.dmp	family_socks5systemz
behavioral2/memory/2736-132-0x0000000000B00000-0x0000000000BA2000-memory.dmp	family_socks5systemz

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

Processes:

d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmphdvideoconverterfox32.exe

pid process

4080 d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp
2736 hdvideoconverterfox32.exe
Loads dropped DLL 1 IoCs

Processes:

d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp

pid process

4080 d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.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:

d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exed5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmphdvideoconverterfox32.exenet.exenet1.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hdvideoconverterfox32.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:

d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp

pid	process
4080	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp
4080	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp

pid process

4080 d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exed5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmpnet.exe

description	pid	process	target process
PID 4672 wrote to memory of 4080	4672	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exe	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp
PID 4672 wrote to memory of 4080	4672	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exe	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp
PID 4672 wrote to memory of 4080	4672	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exe	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp
PID 4080 wrote to memory of 1712	4080	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp	net.exe
PID 4080 wrote to memory of 1712	4080	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp	net.exe
PID 4080 wrote to memory of 1712	4080	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp	net.exe
PID 4080 wrote to memory of 2736	4080	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp	hdvideoconverterfox32.exe
PID 4080 wrote to memory of 2736	4080	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp	hdvideoconverterfox32.exe
PID 4080 wrote to memory of 2736	4080	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp	hdvideoconverterfox32.exe
PID 1712 wrote to memory of 2844	1712	net.exe	net1.exe
PID 1712 wrote to memory of 2844	1712	net.exe	net1.exe
PID 1712 wrote to memory of 2844	1712	net.exe	net1.exe

C:\Users\Admin\AppData\Local\Temp\d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exe
"C:\Users\Admin\AppData\Local\Temp\d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4672
- C:\Users\Admin\AppData\Local\Temp\is-OKP95.tmp\d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-OKP95.tmp\d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp" /SL5="$50296,5984934,56832,C:\Users\Admin\AppData\Local\Temp\d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.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:4080
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause hd_video_converter_fox_124
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1712
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause hd_video_converter_fox_124
      4⤵
      System Location Discovery: System Language Discovery
      PID:2844
- - C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.4\hdvideoconverterfox32.exe
    "C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.4\hdvideoconverterfox32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2736

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

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Downloads

C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.4\hdvideoconverterfox32.exe

Filesize
4.2MB

MD5
38a5caa6469e7844c790877dc2ba35d5

SHA1
382bf04501a11d08d9761b16355f274ad37166f2

SHA256
bf6f3773b147e3770f9fa26e212805654e416b1350044c97fef0cab6594b6b79

SHA512
8dedca7ee2b40fed89498f236c479f2026a6a84c2878eada3c267466bd78e996c3d1d3a97c2d92dc549ae7b946452f884fa91b124e4d1317a0205fdf2a0b0ecd

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KHTO6.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-OKP95.tmp\d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp

Filesize
692KB

MD5
8be3d39aa64a156471598dc6011808a3

SHA1
63a9d8e055ee0abc094e50033a4e58606dd05ddc

SHA256
fb7a3361a44837240508e08d5f78aee54355466f698da296bfefa4400fa95a5d

SHA512
0cfeb497eae905a91fb2f00be4cb9bbe119c2ef71fc0e4859f9ca1143b5c24bd4b7f057af5859304290fc9b23a2e4ae417fa6df1acd4f7538d8e62222c236870

Download Submit
memory/2736-98-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-121-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-139-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-84-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-85-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-87-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-136-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-132-0x0000000000B00000-0x0000000000BA2000-memory.dmp

Filesize
648KB

Download
memory/2736-92-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-91-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-95-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-131-0x0000000000B00000-0x0000000000BA2000-memory.dmp

Filesize
648KB

Download
memory/2736-101-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-104-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-107-0x0000000000B00000-0x0000000000BA2000-memory.dmp

Filesize
648KB

Download
memory/2736-108-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-114-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-117-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-118-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-130-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-124-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/2736-127-0x0000000000400000-0x0000000000830000-memory.dmp

Filesize
4.2MB

Download
memory/4080-6-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4080-88-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4672-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4672-89-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4672-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

pid	process
4080	d5f238c47a5ce6162e78b846e8aaf2c7b2325be907b27787da6fe177b9db5ee6.tmp
2736	hdvideoconverterfox32.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads