socks5systemz | 7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f

General

Target

7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.exe
Size

5.9MB
MD5

94b3962fa6553aa91008c6b3f96e4af2
SHA1

208d8ba1018dedded47d50a75a60bea564576de0
SHA256

7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f
SHA512

05f48aaddf4b7a290b38f2422b61d63b8efd0c275250c8979d9ed316daa7cf038724ecd2827856279dba4122c620ef42d174778863669f4450adc9f6461b4146
SSDEEP

98304:4tkS5vGsEnt89U7qQxkygaPE3c/aZuU+DVHqwOrQi3zkMmmn+OYb47Jxn7:XCvG7aaqQqyEs/5qnZ+kJx7

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2536-109-0x0000000002AC0000-0x0000000002B62000-memory.dmp	family_socks5systemz
behavioral1/memory/2536-133-0x0000000002AC0000-0x0000000002B62000-memory.dmp	family_socks5systemz
behavioral1/memory/2536-132-0x0000000002AC0000-0x0000000002B62000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp
2536	cutmovie.exe

Loads dropped DLL 5 IoCs

pid	Process
1120	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.exe
2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp
2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp
2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp
2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.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	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	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cutmovie.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp
2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 1120 wrote to memory of 2900	1120	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.exe	28
PID 1120 wrote to memory of 2900	1120	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.exe	28
PID 1120 wrote to memory of 2900	1120	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.exe	28
PID 1120 wrote to memory of 2900	1120	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.exe	28
PID 1120 wrote to memory of 2900	1120	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.exe	28
PID 1120 wrote to memory of 2900	1120	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.exe	28
PID 1120 wrote to memory of 2900	1120	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.exe	28
PID 2900 wrote to memory of 2564	2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp	29
PID 2900 wrote to memory of 2564	2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp	29
PID 2900 wrote to memory of 2564	2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp	29
PID 2900 wrote to memory of 2564	2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp	29
PID 2900 wrote to memory of 2536	2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp	31
PID 2900 wrote to memory of 2536	2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp	31
PID 2900 wrote to memory of 2536	2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp	31
PID 2900 wrote to memory of 2536	2900	7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp	31
PID 2564 wrote to memory of 2364	2564	net.exe	32
PID 2564 wrote to memory of 2364	2564	net.exe	32
PID 2564 wrote to memory of 2364	2564	net.exe	32
PID 2564 wrote to memory of 2364	2564	net.exe	32

C:\Users\Admin\AppData\Local\Temp\7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.exe
"C:\Users\Admin\AppData\Local\Temp\7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1120
- C:\Users\Admin\AppData\Local\Temp\is-QV7OF.tmp\7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-QV7OF.tmp\7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp" /SL5="$4001C,5921765,56832,C:\Users\Admin\AppData\Local\Temp\7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.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:2900
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause cut_movie_1172
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2564
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause cut_movie_1172
      4⤵
      System Location Discovery: System Language Discovery
      PID:2364
- - C:\Users\Admin\AppData\Local\Cut Movie 2021.1.02\cutmovie.exe
    "C:\Users\Admin\AppData\Local\Cut Movie 2021.1.02\cutmovie.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2536

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 2021.1.02\cutmovie.exe

Filesize
3.8MB

MD5
5c832a6427e255a45339a40924e6df2d

SHA1
2327adea866700b9ddea6b4582e84a2059848659

SHA256
51ce4361fc3fa0f6e244f14b99d857bca2a489659a20732421428ef135491815

SHA512
312a210c4772115228d13fa1c06309e78f91248a0645fa83dbecdfd6c180c84b62f5f145fb2e9b921b937a715089aef1e098d5b19a2cf49974f5d75905588d27

Download Submit
\Users\Admin\AppData\Local\Temp\is-7DJJJ.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-7DJJJ.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-QV7OF.tmp\7b3d9991749c5ec551e032d64076696e40257a83e58d735f8040f34322fc9f9f.tmp

Filesize
692KB

MD5
5a90943809cf321ababdad971b154c02

SHA1
4f4578728bacdfc909351dd7ed6b8351f5a8853d

SHA256
e735790c3040ca41330f3608822c0e2e113cdc0b7ad915078af5ce70d60f04f3

SHA512
d2ca4127fa3e111a056b7753edfbd76409575a582578db6f53e3a39d711075b25cc07ba55ed7d72c7d061f0e794fe268ca7b8ef7271b596b8a96ec07573f0eac

Download Submit
memory/1120-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1120-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1120-91-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2536-93-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-105-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-87-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-137-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-140-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-133-0x0000000002AC0000-0x0000000002B62000-memory.dmp

Filesize
648KB

Download
memory/2536-96-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-99-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-102-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-86-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-108-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-109-0x0000000002AC0000-0x0000000002B62000-memory.dmp

Filesize
648KB

Download
memory/2536-115-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-118-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-132-0x0000000002AC0000-0x0000000002B62000-memory.dmp

Filesize
648KB

Download
memory/2536-122-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-125-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-128-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2536-131-0x0000000000400000-0x00000000007CA000-memory.dmp

Filesize
3.8MB

Download
memory/2900-84-0x0000000003BF0000-0x0000000003FBA000-memory.dmp

Filesize
3.8MB

Download
memory/2900-119-0x0000000003BF0000-0x0000000003FBA000-memory.dmp

Filesize
3.8MB

Download
memory/2900-90-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2900-8-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download

Analysis

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