socks5systemz | 90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725

General

Target

90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.exe
Size

5.9MB
MD5

a3e6df3f4a210559478771ef244557f8
SHA1

4bf8522e8e8309ad6e9c851b0d51900a83c75b9c
SHA256

90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725
SHA512

bbdb92ccb7aea2779ed807bcdf3e6a2aafdc75b63ee135bbe41eeb1b565620f7d6e3cd3318682aedd4461f1a400e49da195771a64767e0d98de6af3ebbcd13a1
SSDEEP

98304:mijyN5liqXcJEOoWl7hdxjj7SnKazVAKBuecRV0R886TeDOegrfHbKmOe:Tk5pKEOoWl7h73oK0AbRvabgrf71T

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ejfptuc.ua

http://ejfptuc.ua/search/?q=67e28dd83d0ea428165baf167c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a371ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff714c5ee91933a

http://ejfptuc.ua/search/?q=67e28dd83d0ea428165baf167c27d78406abdd88be4b12eab517aa5c96bd86e9938e4f835a8bbc896c58e713bc90c91936b5281fc235a925ed3e00d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d9f3ecc6b9f17

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1540-94-0x0000000000B60000-0x0000000000C02000-memory.dmp	family_socks5systemz
behavioral2/memory/1540-118-0x0000000000B60000-0x0000000000C02000-memory.dmp	family_socks5systemz
behavioral2/memory/1540-117-0x0000000000B60000-0x0000000000C02000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmplampungsoundstage32.exelampungsoundstage32.exe

pid process

4524 90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp
4452 lampungsoundstage32.exe
1540 lampungsoundstage32.exe

Loads dropped DLL 3 IoCs

Processes:

90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp

pid	process
4524	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp
4524	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp
4524	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.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 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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp

pid process

4524 90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp

description	ioc
Destination IP	45.155.250.90

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.exe90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp

description	pid	process	target process
PID 4200 wrote to memory of 4524	4200	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.exe	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp
PID 4200 wrote to memory of 4524	4200	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.exe	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp
PID 4200 wrote to memory of 4524	4200	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.exe	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp
PID 4524 wrote to memory of 4452	4524	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp	lampungsoundstage32.exe
PID 4524 wrote to memory of 4452	4524	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp	lampungsoundstage32.exe
PID 4524 wrote to memory of 4452	4524	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp	lampungsoundstage32.exe
PID 4524 wrote to memory of 1540	4524	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp	lampungsoundstage32.exe
PID 4524 wrote to memory of 1540	4524	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp	lampungsoundstage32.exe
PID 4524 wrote to memory of 1540	4524	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp	lampungsoundstage32.exe

C:\Users\Admin\AppData\Local\Temp\90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.exe
"C:\Users\Admin\AppData\Local\Temp\90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4200

C:\Users\Admin\AppData\Local\Temp\is-VEKJ2.tmp\90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp
"C:\Users\Admin\AppData\Local\Temp\is-VEKJ2.tmp\90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp" /SL5="$10004C,5907162,54272,C:\Users\Admin\AppData\Local\Temp\90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4524

C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe
"C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe" -i
3⤵
- Executes dropped EXE
PID:4452

C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe
"C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe" -s
3⤵
- Executes dropped EXE
PID:1540

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Lampung Soundstage\lampungsoundstage32.exe
Filesize
3.8MB

MD5
d89d68221501b93edb9f1edbe506390c

SHA1
cf34939739891b18886e254512c64fccd577c039

SHA256
4882f8c6be3995fcfe8cb405698631c5e305746563cf7f5032ab85cde925cf56

SHA512
7532c0fe3eb89583a3a93fa8e66f463bbbcf5ef822b3568768f26fb2876957ace42b8825380cadd1654f10c1515c1fac7e009a068dbeca54f7e37492f2882215

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NQB95.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NQB95.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-VEKJ2.tmp\90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp
Filesize
680KB

MD5
40338aef9b322249896e762a5b73c94d

SHA1
dc401c87db8601ddf9eba26566cc5d6a32c0b390

SHA256
1dbc3f9b59777339175bec81b07dabea20e79318beac00826f68c3b726a87be3

SHA512
5af5dfcbf490b982ae9f6dcc4a6ba7ec81d3efb4e8a0277d9bbc72384211e9e4c8591d7360c356ae1e4fc79ec94ee8fba1d0d4cd83647baba04572d8d32619fe

Download Submit
memory/1540-104-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-88-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-125-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-122-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-117-0x0000000000B60000-0x0000000000C02000-memory.dmp

Filesize
648KB

Download
memory/1540-118-0x0000000000B60000-0x0000000000C02000-memory.dmp

Filesize
648KB

Download
memory/1540-116-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-74-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-75-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-113-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-110-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-78-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-81-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-82-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-85-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-107-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-91-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-94-0x0000000000B60000-0x0000000000C02000-memory.dmp

Filesize
648KB

Download
memory/1540-95-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/1540-101-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/4200-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4200-76-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4200-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4452-71-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/4452-66-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/4452-69-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/4452-65-0x0000000000400000-0x00000000007C7000-memory.dmp

Filesize
3.8MB

Download
memory/4524-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4524-77-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

pid	process
4524	90b21413b8210b0818c42e260018d7cf4e1ff146a0af56797ab1e1d88dac8725.tmp
4452	lampungsoundstage32.exe
1540	lampungsoundstage32.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads