socks5systemz | 2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679

General

Target

2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.exe
Size

5.9MB
MD5

e0c32f9e1faccebfbad647e88364652d
SHA1

016ae805b90d5c02ce66926af65e1bd097294c17
SHA256

2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679
SHA512

34307d9f007957145988032aef8b4aac596e5a5be4ce4e4988d45ff6f51bec2886623b66bad3044814730e0a2ac5a23752d51f7be4880dfcf54b496616e10bbf
SSDEEP

98304:4sUPriGehpKgbv+c0VxK/KCuYhqq7d9lrNTnZh1svrSJ9/wk3U8vWq3Tq7hkmFH:XUDiCQ+jx6puaqC9RNj3OvrSJ9It8vWl

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3680-109-0x0000000000990000-0x0000000000A32000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
1880	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp
3680	hdvideoconverterfox.exe

Loads dropped DLL 1 IoCs

pid	Process
1880	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.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	net1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hdvideoconverterfox.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1880	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp
1880	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1880	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3436 wrote to memory of 1880	3436	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.exe	86
PID 3436 wrote to memory of 1880	3436	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.exe	86
PID 3436 wrote to memory of 1880	3436	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.exe	86
PID 1880 wrote to memory of 4548	1880	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp	87
PID 1880 wrote to memory of 4548	1880	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp	87
PID 1880 wrote to memory of 4548	1880	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp	87
PID 1880 wrote to memory of 3680	1880	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp	89
PID 1880 wrote to memory of 3680	1880	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp	89
PID 1880 wrote to memory of 3680	1880	2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp	89
PID 4548 wrote to memory of 2664	4548	net.exe	90
PID 4548 wrote to memory of 2664	4548	net.exe	90
PID 4548 wrote to memory of 2664	4548	net.exe	90

C:\Users\Admin\AppData\Local\Temp\2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.exe
"C:\Users\Admin\AppData\Local\Temp\2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3436
- C:\Users\Admin\AppData\Local\Temp\is-CF7PD.tmp\2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-CF7PD.tmp\2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp" /SL5="$40294,5979169,56832,C:\Users\Admin\AppData\Local\Temp\2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.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:1880
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause hd_video_converter_fox_123
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4548
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause hd_video_converter_fox_123
      4⤵
      System Location Discovery: System Language Discovery
      PID:2664
- - C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.3\hdvideoconverterfox.exe
    "C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.3\hdvideoconverterfox.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:3680

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\HD Video Converter Fox 1.2.3\hdvideoconverterfox.exe

Filesize
4.3MB

MD5
2fbc235db2dd5a7bc6dc18ea7895e0d5

SHA1
d3ce2a78e5de014647f29f7c69201f86ef35a02d

SHA256
30e13b4cd2deca99c5f4fdd59dc9737b9931ccf393cf2dc443710e3bef03d5f9

SHA512
47493a3795af13fe3c79a8c081d5e2b454bd1472eafa457a15db91091d9e90f35d530ccd1c7ebdee6fb256107ca75e1b044c3e0dec6bf9466e7bb3510f3a2f4f

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-CF7PD.tmp\2e9fa7872d95de3a1cfbd0ca0a91fdcf939dc100fb31a5cbb177529a3e706679.tmp

Filesize
692KB

MD5
3f5e5332ae030138dbbe1224c364e271

SHA1
e62360b42ebc28f8bf83ccd148bce064982d0b2e

SHA256
7f1961d3cced6f4c17c1fcbf2583862b9704ac9498ec1e1cf57f21d70a53d903

SHA512
4be0ec4f19bf184b7dcf46be4112861723211d701436ef97f31ec457eceddb72f2e8400caa7ba25cd437bad27a4b0c4348f7c4f3e0d23d73964aecc61397b023

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-PT95B.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1880-86-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/1880-6-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/3436-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-31-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3436-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3680-93-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-107-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-89-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-91-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-85-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-95-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-98-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-101-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-104-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-87-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-109-0x0000000000990000-0x0000000000A32000-memory.dmp

Filesize
648KB

Download
memory/3680-114-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-116-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-118-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-121-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-124-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-127-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-130-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download
memory/3680-134-0x0000000000400000-0x000000000084C000-memory.dmp

Filesize
4.3MB

Download

Analysis

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