socks5systemz | 3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3

General

Target

3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.exe
Size

5.8MB
MD5

9d6c76bf43f32a50d7420936ac4a17d8
SHA1

61186f421e04d91a70a5d36b58f8064ed17099aa
SHA256

3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3
SHA512

b8c398fade7488f1a3cf31445b16430e523d60356e2e19a0370e95d231c41c5b32e556a78fb0f414b56ed47ffe1c3c33c097706d2893234a8baa855db7fea211
SSDEEP

98304:NsXoTrtqJNtvwqA7yDkl/WXtWizKj3Al/s+dU18y5j0YM6R1NgTj8+VRsgmLNY4D:YoHtqDqqA7yi/WXPzK7sxdU18y5j0B4t

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1416-99-0x0000000000DA0000-0x0000000000E42000-memory.dmp	family_socks5systemz
behavioral2/memory/1416-128-0x0000000000DA0000-0x0000000000E42000-memory.dmp	family_socks5systemz
behavioral2/memory/1416-129-0x0000000000DA0000-0x0000000000E42000-memory.dmp	family_socks5systemz

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

Processes:

3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmpscreenstudio3.exe

pid process

5112 3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp
1416 screenstudio3.exe
Loads dropped DLL 2 IoCs

Processes:

3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmpscreenstudio3.exe

pid process

5112 3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp
1416 screenstudio3.exe
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 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

description	ioc
Destination IP	45.155.250.90

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:

3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmpnet.exescreenstudio3.exenet1.exe3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	screenstudio3.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp

pid	process
5112	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp
5112	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp

pid process

5112 3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.exe3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmpnet.exe

description	pid	process	target process
PID 4456 wrote to memory of 5112	4456	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.exe	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp
PID 4456 wrote to memory of 5112	4456	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.exe	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp
PID 4456 wrote to memory of 5112	4456	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.exe	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp
PID 5112 wrote to memory of 3992	5112	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp	net.exe
PID 5112 wrote to memory of 3992	5112	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp	net.exe
PID 5112 wrote to memory of 3992	5112	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp	net.exe
PID 5112 wrote to memory of 1416	5112	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp	screenstudio3.exe
PID 5112 wrote to memory of 1416	5112	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp	screenstudio3.exe
PID 5112 wrote to memory of 1416	5112	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp	screenstudio3.exe
PID 3992 wrote to memory of 2992	3992	net.exe	net1.exe
PID 3992 wrote to memory of 2992	3992	net.exe	net1.exe
PID 3992 wrote to memory of 2992	3992	net.exe	net1.exe

C:\Users\Admin\AppData\Local\Temp\3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.exe
"C:\Users\Admin\AppData\Local\Temp\3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Users\Admin\AppData\Local\Temp\is-867F7.tmp\3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-867F7.tmp\3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp" /SL5="$90050,5877917,54272,C:\Users\Admin\AppData\Local\Temp\3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.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:5112
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause screenstudio_11174
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3992
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause screenstudio_11174
      4⤵
      System Location Discovery: System Language Discovery
      PID:2992
- - C:\Users\Admin\AppData\Local\Screen Studio 1.42\screenstudio3.exe
    "C:\Users\Admin\AppData\Local\Screen Studio 1.42\screenstudio3.exe" -i
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:1416

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\Screen Studio 1.42\screenstudio3.exe

Filesize
6.6MB

MD5
4ee59b2e1b23abd3d69955411ca1d85c

SHA1
fa0dc32155a1f2691c8bc2413f9a44d609b16a1c

SHA256
c9ad0006e56b895307b49f1c54e2464b41cb3d01bb6e2074ab839dac922bda61

SHA512
90b59cdb14fa0a50b68491de91469391ac7b4a8f2cfee1ad1dc076e944c377e9ff6ede3807801da1367987482b4b7e5bc77acfd7abb67f088023d6d98b5da520

Download Submit
C:\Users\Admin\AppData\Local\Screen Studio 1.42\sqlite3.dll

Filesize
630KB

MD5
e477a96c8f2b18d6b5c27bde49c990bf

SHA1
e980c9bf41330d1e5bd04556db4646a0210f7409

SHA256
16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

SHA512
335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-37FU1.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-867F7.tmp\3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp

Filesize
692KB

MD5
4d3a2bb8d7a7dfcfeee20f95757d29e4

SHA1
4ca66ee00b950e6c45c09263b0e451039c572e96

SHA256
88f7d0bc0c2cea9ac3ad806480310c9deae405ba505f6a19f9591115b6cbc57d

SHA512
920d30524b4e1bf7cb3556a578459be4e9122e8c8716e34310fd70ae1deded50bad8bf7a03a46db46557b2e5500a523511a0bb9ddacf2dd966016e98a7cc6e74

Download Submit
memory/1416-77-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-114-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-137-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-68-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-71-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-72-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-133-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-129-0x0000000000DA0000-0x0000000000E42000-memory.dmp

Filesize
648KB

Download
memory/1416-76-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-78-0x0000000060900000-0x0000000060992000-memory.dmp

Filesize
584KB

Download
memory/1416-128-0x0000000000DA0000-0x0000000000E42000-memory.dmp

Filesize
648KB

Download
memory/1416-81-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-85-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-89-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-93-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-97-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-99-0x0000000000DA0000-0x0000000000E42000-memory.dmp

Filesize
648KB

Download
memory/1416-107-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-110-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-126-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-118-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/1416-122-0x0000000000400000-0x0000000000AA1000-memory.dmp

Filesize
6.6MB

Download
memory/4456-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4456-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4456-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/5112-12-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/5112-73-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download

pid	process
5112	3bde0b817bbe26e7ec466c1a63211a2d218da842a62496b0413644786bb29ab3.tmp
1416	screenstudio3.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads