socks5systemz | a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a

General

Target

a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe
Size

4.1MB
MD5

a2493b6441ad2729ff54f0e84e20a3c0
SHA1

0bdf7abd25e68a3aa593e06b75c64eceb5b0ab57
SHA256

a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a
SHA512

082e4891c7bc05b2f2033a9f8758adf393012b536ef8c39e02357f972f36e3ab9fd562d08100a43a276a3b3c946f83d975199bc64387410e36883ff62742e1a9
SSDEEP

98304:C/QWw5ucOjLT3cPHkOPbm4b93PmPbuxQxE:yZ4urv7cPkOPbmk3PmPbuxQG

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bbhmhea.com

http://bbhmhea.com/search/?q=67e28dd86b5bf57d470baa197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608afd13c8ef9c9339

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1336-68-0x0000000002610000-0x00000000026B2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
324	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp
5380	soundvolume.exe
1336	soundvolume.exe

Loads dropped DLL 1 IoCs

pid	Process
324	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.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	flow	ioc	pid	Process
Destination IP	42	45.155.250.90	1336	soundvolume.exe

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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 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	soundvolume.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	soundvolume.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
324	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 324	3016	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe	84
PID 3016 wrote to memory of 324	3016	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe	84
PID 3016 wrote to memory of 324	3016	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe	84
PID 324 wrote to memory of 5380	324	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	88
PID 324 wrote to memory of 5380	324	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	88
PID 324 wrote to memory of 5380	324	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	88
PID 324 wrote to memory of 1336	324	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	89
PID 324 wrote to memory of 1336	324	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	89
PID 324 wrote to memory of 1336	324	a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp	89

C:\Users\Admin\AppData\Local\Temp\a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe
"C:\Users\Admin\AppData\Local\Temp\a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Users\Admin\AppData\Local\Temp\is-UK4SQ.tmp\a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-UK4SQ.tmp\a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp" /SL5="$80114,3905429,54272,C:\Users\Admin\AppData\Local\Temp\a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:324
- - C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe
    "C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:5380
- - C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe
    "C:\Users\Admin\AppData\Local\Sound Volume\soundvolume.exe" -s
    3⤵
    - Executes dropped EXE
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:1336

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 Information Discovery

1

T1082

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\Sound Volume\soundvolume.exe

Filesize
2.9MB

MD5
58d3f602a0c06e6a6c3f176ea87aeed1

SHA1
aa8d28ad37719c08edae2863d839d1083d18fc27

SHA256
293687c5d6a278aae44595cf5752ccd057940e67e6b3630c2880eab5ab76ee36

SHA512
4e71162c19d77fbf2198038e66150692ccf3d3a99239cd6a2ada9b437181d2d1331169f3731f77200c99ca1c87bdbc43f815bf14f14f6e544d0d674c4cd1dd2a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8RLFD.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-UK4SQ.tmp\a42fb35663dabe8ff2959cc8be2082a288681b3ac8ef2c772c1e7b356dcf432a.tmp

Filesize
680KB

MD5
6e8a6870c7b7cca7857274c12319be79

SHA1
670cb59240dcf402572bac9afa413530f4126248

SHA256
18b2e6e055099ecdee8aa2cdca0d19d18bb3bb0f6db8725cf0fc0d39f95813fc

SHA512
8f4dd62e1b8be2dd4b3178f7267c7898c26e2466826c93eaff817fc0b08d926671e2e620fb341516d72b90b2519710e8b6354afccf2c777d7148cae8e521a037

Download Submit
memory/324-48-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/324-7-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1336-82-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-69-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-47-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-112-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-109-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-106-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-103-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-100-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-51-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-52-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-55-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-58-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-61-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-64-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-68-0x0000000002610000-0x00000000026B2000-memory.dmp

Filesize
648KB

Download
memory/1336-97-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-75-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-76-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-79-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-94-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-85-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-88-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/1336-91-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/3016-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3016-49-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3016-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5380-44-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/5380-39-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/5380-40-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download
memory/5380-43-0x0000000000400000-0x00000000006E0000-memory.dmp

Filesize
2.9MB

Download

Analysis

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