socks5systemz | e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e

General

Target

e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.exe
Size

4.2MB
MD5

7266ea935f2654ae59593be3e5f9b7f8
SHA1

271b326318509490d55e295b3c151cad39e2bb4d
SHA256

e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e
SHA512

631701105d6e3dbc56b5fa32e2e582b0920258b17bd9fa6ccae6471cc12c43d8ba71c12781cec31c6d9993943488654ee96a6210558816aeb4b744c729fcc6a9
SSDEEP

98304:CCrcFKDCYAqNa/8yzp9f7oK3KADB1PqjXOc6c2AWsQxE:a8a/8Qp9f7oYKEkXx6c2DsQG

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bohibrb.com

http://bohibrb.com/search/?q=67e28dd86558fa2d4658af497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978fe71ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608afd13c8e69c9938

http://bohibrb.com/search/?q=67e28dd86558fa2d4658af497c27d78406abdd88be4b12eab517aa5c96bd86e997814996148ab2865b77f80ebad9c60f7cb63037ed2ab423a43b4383ba915d911ec07bb606a0708727e40ea678c45abbe74ffb0e2807e12571c17f3e83fe16c4ed979232c46c95

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/2040-70-0x0000000000A10000-0x0000000000AB2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
3056	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp
5188	soundvolume.exe
2040	soundvolume.exe

Loads dropped DLL 1 IoCs

pid	Process
3056	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp

Unexpected DNS network traffic destination 3 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	flow	ioc	pid	Process
Destination IP	40	152.89.198.214	2040	soundvolume.exe
Destination IP	42	152.89.198.214	2040	soundvolume.exe
Destination IP	43	91.211.247.248	2040	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	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	soundvolume.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	soundvolume.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3056	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 5264 wrote to memory of 3056	5264	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.exe	87
PID 5264 wrote to memory of 3056	5264	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.exe	87
PID 5264 wrote to memory of 3056	5264	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.exe	87
PID 3056 wrote to memory of 5188	3056	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp	89
PID 3056 wrote to memory of 5188	3056	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp	89
PID 3056 wrote to memory of 5188	3056	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp	89
PID 3056 wrote to memory of 2040	3056	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp	90
PID 3056 wrote to memory of 2040	3056	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp	90
PID 3056 wrote to memory of 2040	3056	e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp	90

C:\Users\Admin\AppData\Local\Temp\e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.exe
"C:\Users\Admin\AppData\Local\Temp\e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5264
- C:\Users\Admin\AppData\Local\Temp\is-4ICA9.tmp\e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-4ICA9.tmp\e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp" /SL5="$70290,4039985,54272,C:\Users\Admin\AppData\Local\Temp\e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3056
- - 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:5188
- - 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:2040

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
3.1MB

MD5
de0dc5705001fd2d27a5ae87d97cd5a4

SHA1
5e6fb02b7555cc2241bd43c69bddb621336e0354

SHA256
cd8a5c3dda9f307057147f10b259219056701ad05b2daf4ec4a30c1f08ab8344

SHA512
4b07731f8f7a81135a1018494c1c313835fbc8d1a08b00158c74c52c7fad5cb58a5ad49e5c4b79d52d1a252ee2abc03656b33fd16d33ba9e9ef4b2930f996ce8

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0FGPA.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-4ICA9.tmp\e5b2dbeb9458d7b686e9feaa81b8de24c348af81313dae5f50fd98a31defc44e.tmp

Filesize
680KB

MD5
6e8a6870c7b7cca7857274c12319be79

SHA1
670cb59240dcf402572bac9afa413530f4126248

SHA256
18b2e6e055099ecdee8aa2cdca0d19d18bb3bb0f6db8725cf0fc0d39f95813fc

SHA512
8f4dd62e1b8be2dd4b3178f7267c7898c26e2466826c93eaff817fc0b08d926671e2e620fb341516d72b90b2519710e8b6354afccf2c777d7148cae8e521a037

Download Submit
memory/2040-89-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-92-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-114-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-111-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-108-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-105-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-102-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-47-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-48-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-98-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-95-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-52-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-53-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-54-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-57-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-60-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-70-0x0000000000A10000-0x0000000000AB2000-memory.dmp

Filesize
648KB

Download
memory/2040-66-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-63-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-71-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-77-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-80-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-83-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/2040-86-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/3056-7-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3056-49-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5188-44-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/5188-43-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/5188-40-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/5188-39-0x0000000000400000-0x0000000000712000-memory.dmp

Filesize
3.1MB

Download
memory/5264-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5264-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5264-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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