socks5systemz | ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52

General

Target

ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.exe
Size

3.6MB
MD5

1dbed06b2dc7b1a8e3e4abc686865a8a
SHA1

ee1e04994c631aa9aec40e8d6a2b2913043a7469
SHA256

ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52
SHA512

8f1565560f45392c393ed07385b10b6b5a6affa448b42164511a34b0086fc965c4cbba3d3c7e7524866d574337c59944638064338865949645988ae1aeb81c95
SSDEEP

98304:NZcaYHKos9yR8vDrp+0U5TpH/JSSsVKNPxw:75YHw9yK/p+pTpH7nw

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2808-79-0x0000000002BD0000-0x0000000002C72000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp
2808	views32_64.exe

Loads dropped DLL 6 IoCs

pid	Process
2112	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.exe
2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp
2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp
2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp
2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp
2808	views32_64.exe

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
Network Share Discovery 1 TTPs
Attempt to gather information on host network.
discovery

Network Share Discovery
T1135

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	views32_64.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe

Discovers systems in the same network 1 TTPs 1 IoCs

discovery

Remote System Discovery

T1018

pid	Process
2688	net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp
2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2112 wrote to memory of 2412	2112	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.exe	30
PID 2112 wrote to memory of 2412	2112	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.exe	30
PID 2112 wrote to memory of 2412	2112	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.exe	30
PID 2112 wrote to memory of 2412	2112	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.exe	30
PID 2112 wrote to memory of 2412	2112	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.exe	30
PID 2112 wrote to memory of 2412	2112	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.exe	30
PID 2112 wrote to memory of 2412	2112	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.exe	30
PID 2412 wrote to memory of 2688	2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp	31
PID 2412 wrote to memory of 2688	2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp	31
PID 2412 wrote to memory of 2688	2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp	31
PID 2412 wrote to memory of 2688	2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp	31
PID 2412 wrote to memory of 2808	2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp	33
PID 2412 wrote to memory of 2808	2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp	33
PID 2412 wrote to memory of 2808	2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp	33
PID 2412 wrote to memory of 2808	2412	ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp	33
PID 2688 wrote to memory of 2596	2688	net.exe	34
PID 2688 wrote to memory of 2596	2688	net.exe	34
PID 2688 wrote to memory of 2596	2688	net.exe	34
PID 2688 wrote to memory of 2596	2688	net.exe	34

C:\Users\Admin\AppData\Local\Temp\ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.exe
"C:\Users\Admin\AppData\Local\Temp\ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2112
- C:\Users\Admin\AppData\Local\Temp\is-QAH1F.tmp\ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-QAH1F.tmp\ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp" /SL5="$400F8,3572563,54272,C:\Users\Admin\AppData\Local\Temp\ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.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:2412
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause view_s_11204
    3⤵
    - System Location Discovery: System Language Discovery
    - Discovers systems in the same network
    - Suspicious use of WriteProcessMemory
    PID:2688
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause view_s_11204
      4⤵
      System Location Discovery: System Language Discovery
      PID:2596
- - C:\Users\Admin\AppData\Local\ViewS 17.6.9\views32_64.exe
    "C:\Users\Admin\AppData\Local\ViewS 17.6.9\views32_64.exe" -i
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Share Discovery

Query Registry

Remote System Discovery

1

T1018

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\ViewS 17.6.9\sqlite3.dll

Filesize
630KB

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
\Users\Admin\AppData\Local\Temp\is-F2FEM.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-F2FEM.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-QAH1F.tmp\ef2b651c73c3b03f06ae37161afb712b0cdccf77e63de01b39f2eda0fbccea52.tmp

Filesize
687KB

MD5
95d7f6c6a3a4884e02b006291e53fbcc

SHA1
36430fc8f42b7d2cfefddfc7e20c5c94f63552f7

SHA256
9243a741f7a472e2240ba440148a6257c1d206fe414cd1b568c1f52d53664a8f

SHA512
b497e7c3bb96114577291020c4de17dc241ca2358cf63824a96c876d5e943ba2f4699f10c7c619501243722107a11f290ca898779e0a5d4c0898ab2290ef8bad

Download Submit
\Users\Admin\AppData\Local\ViewS 17.6.9\views32_64.exe

Filesize
3.3MB

MD5
c0aae5947d5ee615c7eb580438626504

SHA1
92ace62b67a07c88e2c10064100f3df7b62d1754

SHA256
9f819c0026728e694597ea884902f84d335aa58d78aa85801328a7d5b6da1165

SHA512
3d729b0d06175b0704f3f446a7447affd66df418a1ecc4019961c874ef28b236f9495c96a72885bc8b5a77cbecf6c6c6053727be79ec681357480c3cb25b8692

Download Submit
memory/2112-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2112-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2112-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2412-54-0x0000000003C50000-0x0000000003FAC000-memory.dmp

Filesize
3.4MB

Download
memory/2412-43-0x0000000003C50000-0x0000000003FAC000-memory.dmp

Filesize
3.4MB

Download
memory/2412-8-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2412-53-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2808-65-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2808-73-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2808-57-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2808-58-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/2808-61-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2808-47-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2808-69-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2808-49-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2808-77-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2808-79-0x0000000002BD0000-0x0000000002C72000-memory.dmp

Filesize
648KB

Download
memory/2808-85-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2808-89-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2808-93-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2808-97-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download
memory/2808-101-0x0000000000400000-0x000000000075C000-memory.dmp

Filesize
3.4MB

Download

Analysis

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