socks5systemz | 545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151

General

Target

545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.exe
Size

5.9MB
MD5

8a7bb92c029592c20a43dfe8b2765730
SHA1

5a43077baa53dbecc23170e69ae32a547299d8ab
SHA256

545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151
SHA512

3c89532801e9b06e4203f49128718720fb309601839d133eccc921f7b2a934425b23aefb7194d4560dedd1ff955d5db7720798483d295dcc1340a7ece6310fae
SSDEEP

98304:44vRPrY8ct5HRMMvE5lbJ2+le2CZien2w0emgsG9ZvN33AKSl:vr7QHRQjQPQVgsIFq

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2652-109-0x0000000002B30000-0x0000000002BD2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp
2652	cutmovie32.exe

Loads dropped DLL 5 IoCs

pid	Process
2236	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.exe
2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp
2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp
2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp
2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp

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	cutmovie32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp
2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2364	2236	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.exe	31
PID 2236 wrote to memory of 2364	2236	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.exe	31
PID 2236 wrote to memory of 2364	2236	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.exe	31
PID 2236 wrote to memory of 2364	2236	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.exe	31
PID 2236 wrote to memory of 2364	2236	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.exe	31
PID 2236 wrote to memory of 2364	2236	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.exe	31
PID 2236 wrote to memory of 2364	2236	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.exe	31
PID 2364 wrote to memory of 2828	2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp	32
PID 2364 wrote to memory of 2828	2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp	32
PID 2364 wrote to memory of 2828	2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp	32
PID 2364 wrote to memory of 2828	2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp	32
PID 2364 wrote to memory of 2652	2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp	34
PID 2364 wrote to memory of 2652	2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp	34
PID 2364 wrote to memory of 2652	2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp	34
PID 2364 wrote to memory of 2652	2364	545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp	34
PID 2828 wrote to memory of 2740	2828	net.exe	35
PID 2828 wrote to memory of 2740	2828	net.exe	35
PID 2828 wrote to memory of 2740	2828	net.exe	35
PID 2828 wrote to memory of 2740	2828	net.exe	35

C:\Users\Admin\AppData\Local\Temp\545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.exe
"C:\Users\Admin\AppData\Local\Temp\545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Users\Admin\AppData\Local\Temp\is-T6EF7.tmp\545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-T6EF7.tmp\545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp" /SL5="$401B0,5890217,56832,C:\Users\Admin\AppData\Local\Temp\545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.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:2364
- - 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:2828
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause cut_movie_1173
      4⤵
      System Location Discovery: System Language Discovery
      PID:2740
- - C:\Users\Admin\AppData\Local\Cut Movie 2020.3.34\cutmovie32.exe
    "C:\Users\Admin\AppData\Local\Cut Movie 2020.3.34\cutmovie32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2652

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

\Users\Admin\AppData\Local\Cut Movie 2020.3.34\cutmovie32.exe

Filesize
3.6MB

MD5
818901e977eecec84539cb763fc7fde9

SHA1
f4bd5c72fd2f5b6c5150504e2c75518b3f96c8cc

SHA256
baca49f9561d7cf0e760acf01431fe58259fe1b6a9fbfe974d455f4e4b204416

SHA512
a20e1a69b2841a1bae2d7ab3961b59649b103ed6523f145b77aad59efae6576c8b3fbea36851e5834b4d0c93930ba0a15b82481498f11f60bfe35436d9497bc8

Download Submit
\Users\Admin\AppData\Local\Temp\is-9P2IC.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-9P2IC.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-T6EF7.tmp\545160402919f25ad903f04124a325695527a66168fdf8094b554554126b1151N.tmp

Filesize
692KB

MD5
8d0efda21efb3632087dfc1e0c453d6b

SHA1
ce9fb5248583d80961c985a786c7fcdf7dec6bf2

SHA256
a943b2d37a1a038079264319d261078bd3fb9508db52d39b90977b242074217a

SHA512
e5a21d5e57bd4e5b9f4779ce5a22d3d37905fbb84e69d3392b4b314d39abd21dc012c4ef1e7583f3435a7a8390514ffc971bfbdf0fe7a09abe8872c1b014cb57

Download Submit
memory/2236-91-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2236-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2236-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2364-8-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2364-85-0x0000000003670000-0x0000000003A17000-memory.dmp

Filesize
3.7MB

Download
memory/2364-118-0x0000000003670000-0x0000000003A17000-memory.dmp

Filesize
3.7MB

Download
memory/2364-90-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2652-93-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2652-109-0x0000000002B30000-0x0000000002BD2000-memory.dmp

Filesize
648KB

Download
memory/2652-96-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2652-99-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2652-102-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2652-105-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2652-108-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2652-87-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2652-115-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2652-86-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2652-119-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2652-122-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2652-125-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download
memory/2652-128-0x0000000000400000-0x00000000007A7000-memory.dmp

Filesize
3.7MB

Download

Analysis

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