socks5systemz | 97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a

General

Target

97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.exe
Size

5.9MB
MD5

bff1c145dbd48dcafd2c0bef4bfac9ee
SHA1

0595d0ea53d53fe5c3d92ad8919951a57465569d
SHA256

97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a
SHA512

e882d46647b44caa8242f7cb1f5baf73e63190b1054de00e7a5844cb476159e1e61062c291c2ad8053ba456544fd411b700e580fd246ac7e227f9b66a39bbf41
SSDEEP

98304:4nNufOqxv0RJV6WDVKPdG6MswRcw+NwTZ3YuziLCIvnaB/mgkwUDNmT3DdbWPnJb:ONuJM1+Gmw2HWTZWvC/k9PnJkQ

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/2792-104-0x0000000000B00000-0x0000000000BA2000-memory.dmp	family_socks5systemz
behavioral2/memory/2792-129-0x0000000000B00000-0x0000000000BA2000-memory.dmp	family_socks5systemz
behavioral2/memory/2792-130-0x0000000000B00000-0x0000000000BA2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
400	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp
2792	cutmovie32.exe

Loads dropped DLL 1 IoCs

pid	Process
400	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.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	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

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	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cutmovie32.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

pid	Process
400	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp
400	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
400	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4880 wrote to memory of 400	4880	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.exe	84
PID 4880 wrote to memory of 400	4880	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.exe	84
PID 4880 wrote to memory of 400	4880	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.exe	84
PID 400 wrote to memory of 1628	400	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp	87
PID 400 wrote to memory of 1628	400	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp	87
PID 400 wrote to memory of 1628	400	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp	87
PID 400 wrote to memory of 2792	400	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp	89
PID 400 wrote to memory of 2792	400	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp	89
PID 400 wrote to memory of 2792	400	97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp	89
PID 1628 wrote to memory of 1800	1628	net.exe	90
PID 1628 wrote to memory of 1800	1628	net.exe	90
PID 1628 wrote to memory of 1800	1628	net.exe	90

C:\Users\Admin\AppData\Local\Temp\97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.exe
"C:\Users\Admin\AppData\Local\Temp\97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4880
- C:\Users\Admin\AppData\Local\Temp\is-TSQ4T.tmp\97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-TSQ4T.tmp\97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp" /SL5="$9029C,5905733,56832,C:\Users\Admin\AppData\Local\Temp\97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.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:400
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause cut_movie_1173
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1628
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause cut_movie_1173
      4⤵
      System Location Discovery: System Language Discovery
      PID:1800
- - C:\Users\Admin\AppData\Local\Cut Movie 2020.3.35\cutmovie32.exe
    "C:\Users\Admin\AppData\Local\Cut Movie 2020.3.35\cutmovie32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2792

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

C:\Users\Admin\AppData\Local\Cut Movie 2020.3.35\cutmovie32.exe

Filesize
3.6MB

MD5
50bb2c56adcfcf9bb324d9d5ebbf7713

SHA1
ffc033446ff89a3d205c460232a4d870ee2da7f3

SHA256
cb44f9dbd9cfdef2df16b765254cfee94c93d0cf61a09f4d43e5688cdab5d304

SHA512
cb40a3a856da2a831117dac568a40132d28e7ca2a382c301765047a09fc62e8b21219ef6f4dc8a3fdc4ba0da29028dbf1f9d54263311822af33a88a0bcdf1111

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-QLQK4.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-TSQ4T.tmp\97760fc9b241db6bad15dd4b4ac9576b1f4dd9bbc27705c1572f7fd4d96a2b4a.tmp

Filesize
692KB

MD5
0a0ea6ea0ac5f40f43c0ee02136611dc

SHA1
174336b99b57acf0caebe303a17bd0207485889f

SHA256
cb65986281cd8549eb127d7a344364464f01c2d19d594ad7fb43fc53ba88b219

SHA512
0f6adf97a7bbfca3086d2361cc63b807c2864a60800becea9ba275777ee7d2d7c585e5dd1e1ea290e040381af934e895f62245f407f5370efa871ffce71592e5

Download Submit
memory/400-84-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/400-6-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2792-94-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-105-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-81-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-83-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-137-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-134-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-87-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-88-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-91-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-130-0x0000000000B00000-0x0000000000BA2000-memory.dmp

Filesize
648KB

Download
memory/2792-97-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-100-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-104-0x0000000000B00000-0x0000000000BA2000-memory.dmp

Filesize
648KB

Download
memory/2792-80-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-112-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-115-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-116-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-119-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-122-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-125-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-128-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2792-129-0x0000000000B00000-0x0000000000BA2000-memory.dmp

Filesize
648KB

Download
memory/4880-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4880-85-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4880-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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