socks5systemz | 85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49

General

Target

85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.exe
Size

4.8MB
MD5

5bce66d5f4b8ceb2b10407cae4a3c917
SHA1

0b62f1907114ba8936e935f383e0038c2d82e561
SHA256

85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49
SHA512

541c159d3413eb391d1709d45983bae97b2bbdc9da723426c84f6bcf0f97c54df7a97510185434890043ef4f1a8bf516c28a57549a02c46c109c2b746445db22
SSDEEP

98304:NJrpItLC8W/khOXTmPEsOkWfU+stSd4ZW2rMVn2Awb1YVkQ7rYd5:7rpIU8W/k7ofb5dGWm6ob1ZVj

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/452-99-0x0000000000B90000-0x0000000000C32000-memory.dmp	family_socks5systemz
behavioral2/memory/452-128-0x0000000000B90000-0x0000000000C32000-memory.dmp	family_socks5systemz
behavioral2/memory/452-127-0x0000000000B90000-0x0000000000C32000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
4088	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp
452	videoenhancer.exe

Loads dropped DLL 2 IoCs

pid	Process
4088	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp
452	videoenhancer.exe

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	91.211.247.248

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	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	videoenhancer.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
4088	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp
4088	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4088	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3940 wrote to memory of 4088	3940	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.exe	83
PID 3940 wrote to memory of 4088	3940	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.exe	83
PID 3940 wrote to memory of 4088	3940	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.exe	83
PID 4088 wrote to memory of 1540	4088	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp	85
PID 4088 wrote to memory of 1540	4088	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp	85
PID 4088 wrote to memory of 1540	4088	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp	85
PID 4088 wrote to memory of 452	4088	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp	86
PID 4088 wrote to memory of 452	4088	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp	86
PID 4088 wrote to memory of 452	4088	85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp	86
PID 1540 wrote to memory of 4412	1540	net.exe	88
PID 1540 wrote to memory of 4412	1540	net.exe	88
PID 1540 wrote to memory of 4412	1540	net.exe	88

C:\Users\Admin\AppData\Local\Temp\85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.exe
"C:\Users\Admin\AppData\Local\Temp\85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3940
- C:\Users\Admin\AppData\Local\Temp\is-QJDE5.tmp\85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-QJDE5.tmp\85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp" /SL5="$A004E,4746777,54272,C:\Users\Admin\AppData\Local\Temp\85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.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:4088
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause video_enhancer_11181
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1540
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause video_enhancer_11181
      4⤵
      System Location Discovery: System Language Discovery
      PID:4412
- - C:\Users\Admin\AppData\Local\VCALabs Video Enhancer 3.3.1.22\videoenhancer.exe
    "C:\Users\Admin\AppData\Local\VCALabs Video Enhancer 3.3.1.22\videoenhancer.exe" -i
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:452

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\Temp\is-JSTSH.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-QJDE5.tmp\85557ffb7e7a718f92dd1535a390870998bf15955445464565225673d5c94d49.tmp

Filesize
692KB

MD5
38b98c144f19303161e0bd1064bbca18

SHA1
ade26521577235ff04d37d81b8a2456294ee7fa6

SHA256
061a36b09be26a49338c8977c4d317315dd4cd6254dcb7b3523a7a5e3ca85140

SHA512
3c1d67b1951bfed1c3c9314889cbf477562f078848dff7cd23b246e705e213f8485164dd604db78632a229efc567ae1d59fce76223b7422c48b71a74e0fca32d

Download Submit
C:\Users\Admin\AppData\Local\VCALabs Video Enhancer 3.3.1.22\sqlite3.dll

Filesize
630KB

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
C:\Users\Admin\AppData\Local\VCALabs Video Enhancer 3.3.1.22\videoenhancer.exe

Filesize
4.9MB

MD5
2a4a1cd7742441feea4dbb4a276c3af4

SHA1
71b2f1d25cc16bbd02cf83b115ed50e3dd69ee06

SHA256
0fc617b1ee753d97f195c28511fe48e99a6179242423336f8273ea36ea745d5b

SHA512
07abaad39758235046643c867dc838b5a44148ffc80079efefab4f74d65b3110cd4238c5c388e3302a87a7bee3c3556f10ac84c3420a02804fd4a505b6fb2a8d

Download Submit
memory/452-77-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-113-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-136-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-68-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-69-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-71-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-132-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-127-0x0000000000B90000-0x0000000000C32000-memory.dmp

Filesize
648KB

Download
memory/452-76-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-78-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/452-128-0x0000000000B90000-0x0000000000C32000-memory.dmp

Filesize
648KB

Download
memory/452-81-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-85-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-89-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-93-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-97-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-99-0x0000000000B90000-0x0000000000C32000-memory.dmp

Filesize
648KB

Download
memory/452-105-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-109-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-125-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-117-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/452-121-0x0000000000400000-0x00000000008E4000-memory.dmp

Filesize
4.9MB

Download
memory/3940-1-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3940-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3940-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4088-13-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4088-73-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download

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