socks5systemz | d07c95e8960c8d0a4de79e97afbbb836d73b8869dda97917bce1d0fa4ef88195

Analysis

max time kernel
142s
max time network
134s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02-12-2024 16:25

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General

Target

31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe
Size

7.9MB
MD5

0396163369529cd5b010e3c35a2066c5
SHA1

c3f58efd6dc957d0baf6eb71e0f6539e5eb3d596
SHA256

31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0
SHA512

6805f80c0979432ff1e3adfed34fd8a30d8a79b839796dc94329b409892e4a5809df9728158dc782c78417badabbf20a058949814b37fc4f99a53c293d68e968
SSDEEP

196608:dhd3YhVbbGfzH8dFXKH3ARHMjDB5braO5F5KMA7z0fCnIRBR:dnYTbuzH8dFaHfjVxronSCIPR

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral4/memory/796-195-0x0000000002920000-0x00000000029C2000-memory.dmp	family_socks5systemz
behavioral4/memory/796-219-0x0000000002920000-0x00000000029C2000-memory.dmp	family_socks5systemz
behavioral4/memory/796-220-0x0000000002920000-0x00000000029C2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

Processes:

31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmpzextervideocodec32_64.exe

pid	Process
1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp
796	zextervideocodec32_64.exe

Loads dropped DLL 6 IoCs

Processes:

31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp

pid	Process
2684	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe
1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp
1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp
1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp
1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp
1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp

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	141.98.234.31

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 3 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:

31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmpzextervideocodec32_64.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	zextervideocodec32_64.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp

pid	Process
1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp
1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp

pid	Process
1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp

description	pid	Process	procid_target
PID 2684 wrote to memory of 1784	2684	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe	30
PID 2684 wrote to memory of 1784	2684	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe	30
PID 2684 wrote to memory of 1784	2684	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe	30
PID 2684 wrote to memory of 1784	2684	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe	30
PID 2684 wrote to memory of 1784	2684	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe	30
PID 2684 wrote to memory of 1784	2684	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe	30
PID 2684 wrote to memory of 1784	2684	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe	30
PID 1784 wrote to memory of 796	1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp	31
PID 1784 wrote to memory of 796	1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp	31
PID 1784 wrote to memory of 796	1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp	31
PID 1784 wrote to memory of 796	1784	31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp	31

C:\Users\Admin\AppData\Local\Temp\31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe
"C:\Users\Admin\AppData\Local\Temp\31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2684
- C:\Users\Admin\AppData\Local\Temp\is-LATA2.tmp\31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-LATA2.tmp\31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp" /SL5="$400E0,8045603,54272,C:\Users\Admin\AppData\Local\Temp\31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.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:1784
- - C:\Users\Admin\AppData\Local\Zexter Video Codec\zextervideocodec32_64.exe
    "C:\Users\Admin\AppData\Local\Zexter Video Codec\zextervideocodec32_64.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:796

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\is-ICE9C.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-ICE9C.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
\Users\Admin\AppData\Local\Temp\is-ICE9C.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-LATA2.tmp\31d2bac123d451caed79ced03b80592dacc3499f6c91a9e32630d3590d52a6c0.tmp

Filesize
692KB

MD5
16c9d19ab32c18671706cefee19b6949

SHA1
fca23338cb77068e1937df4e59d9c963c5548cf8

SHA256
c1769524411682d5a204c8a40f983123c67efeadb721160e42d7bbfe4531eb70

SHA512
32b4b0b2fb56a299046ec26fb41569491e8b0cd2f8bec9d57ec0d1ad1a7860eec72044dab2d5044cb452ed46e9f21513eab2171bafa9087af6d2de296455c64b

Download Submit
\Users\Admin\AppData\Local\Zexter Video Codec\zextervideocodec32_64.exe

Filesize
2.5MB

MD5
4ac9b0be70b6e01bfd47ffa47289ded7

SHA1
a8e99f68a9dea6f3c0a0767c4341716236d366e9

SHA256
a241c183e38754017f08936a0c6e71588eacafc44c656110c071032f5b6fd159

SHA512
ba22f267944cb8fcb8729e99e62db7ef27eaf38c2c613cd6c4106250eaabec4546b387f465330410b006535b4dd9226fbda12c22d6ec29795fc296c82e9c52a8

Download Submit
memory/796-209-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-204-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-227-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-219-0x0000000002920000-0x00000000029C2000-memory.dmp

Filesize
648KB

Download
memory/796-172-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-173-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-218-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-215-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-179-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-182-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-185-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-188-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-191-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-194-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-195-0x0000000002920000-0x00000000029C2000-memory.dmp

Filesize
648KB

Download
memory/796-201-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-220-0x0000000002920000-0x00000000029C2000-memory.dmp

Filesize
648KB

Download
memory/796-212-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-206-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/796-224-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1784-205-0x00000000033B0000-0x000000000362E000-memory.dmp

Filesize
2.5MB

Download
memory/1784-8-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/1784-176-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/1784-171-0x00000000033B0000-0x000000000362E000-memory.dmp

Filesize
2.5MB

Download
memory/2684-177-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2684-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2684-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download