socks5systemz | 01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782

General

Target

01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.exe
Size

4.6MB
MD5

dba13ab7e5e163970672806698bce11e
SHA1

2f4d6eb12d65b35aba997d72e2c7c8760446b72b
SHA256

01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782
SHA512

8348ea88eea0cfe3b29b1cd2bd2550d73c9af446f21a641368b7a8ab75e342d41f193ee7fb658c52445732cca140167e2758fe11f05d94bc0fab4ad77779d0f3
SSDEEP

98304:mioqIDdl0emGn3loUlKnMc3S9PwY7a3PZCR0D26UExk78FP:MDDdl0ehnvrg2a3PZCRSCEueP

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

errmdfx.ua

http://errmdfx.ua/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f171ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff716c1e99d9b3c

http://errmdfx.ua/search/?q=67e28dd86459a42c4009ab4e7c27d78406abdd88be4b12eab517aa5c96bd86ee9d8649845a8bbc896c58e713bc90c91836b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d9d3acb679711

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4232-88-0x0000000000970000-0x0000000000A12000-memory.dmp	family_socks5systemz
behavioral2/memory/4232-113-0x0000000000970000-0x0000000000A12000-memory.dmp	family_socks5systemz
behavioral2/memory/4232-112-0x0000000000970000-0x0000000000A12000-memory.dmp	family_socks5systemz

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

Processes:

01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmpfanplayercloudfree32.exefanplayercloudfree32.exe

pid process

240 01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp
1528 fanplayercloudfree32.exe
4232 fanplayercloudfree32.exe
Loads dropped DLL 1 IoCs

Processes:

01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp

pid process

240 01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.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
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:

01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp

pid process

240 01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp

pid	process
240	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp
1528	fanplayercloudfree32.exe
4232	fanplayercloudfree32.exe

pid	process
240	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
240	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.exe01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp

description	pid	process	target process
PID 1428 wrote to memory of 240	1428	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.exe	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp
PID 1428 wrote to memory of 240	1428	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.exe	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp
PID 1428 wrote to memory of 240	1428	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.exe	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp
PID 240 wrote to memory of 1528	240	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp	fanplayercloudfree32.exe
PID 240 wrote to memory of 1528	240	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp	fanplayercloudfree32.exe
PID 240 wrote to memory of 1528	240	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp	fanplayercloudfree32.exe
PID 240 wrote to memory of 4232	240	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp	fanplayercloudfree32.exe
PID 240 wrote to memory of 4232	240	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp	fanplayercloudfree32.exe
PID 240 wrote to memory of 4232	240	01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp	fanplayercloudfree32.exe

C:\Users\Admin\AppData\Local\Temp\01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.exe
"C:\Users\Admin\AppData\Local\Temp\01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1428

C:\Users\Admin\AppData\Local\Temp\is-G0U50.tmp\01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp
"C:\Users\Admin\AppData\Local\Temp\is-G0U50.tmp\01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp" /SL5="$4022E,4587802,54272,C:\Users\Admin\AppData\Local\Temp\01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:240

C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe
"C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe" -i
3⤵
- Executes dropped EXE
PID:1528

C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe
"C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe" -s
3⤵
- Executes dropped EXE
PID:4232

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe
Filesize
2.5MB

MD5
d1fd6f4771bd067b805f6a1740f79bb7

SHA1
ec281ef157514c38f33e12e52d8c4c662db3ca5a

SHA256
38d37cc3708c81a6aa7a47cbc933d50647f3feb810e6143848379b2091aad8cf

SHA512
c2c700379e288d30fb2371f960bd52eb532735b2e2d01f9dbed4ffda1650cf790f5be825043b3e82fe92b111ce95dacc139b525fdf3d7f85432e4b5020925ae0

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-G0U50.tmp\01918a214c02b064345651d33c66077c27e77e19cb5b0cb359ecc9c2dc15d782.tmp
Filesize
680KB

MD5
18d21bb7e8480255c7d24705a9a8c78e

SHA1
d1342b489f1b4921d0c8b100261e819db24f2981

SHA256
715669c614242a778a97873ed475b333700d2d4cb0277286f38fa6a2a551ef91

SHA512
d4eef761e23035f35c5bdcced816d678f009c2115f9a0cc2436395fdb07ecf84304c3341d2fcb0d299b881449f46c9b499c3903fb427a8f2bf3abb3840ee3cb3

Download Submit
memory/240-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/240-71-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1428-70-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1428-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1428-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1528-60-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/1528-63-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/1528-65-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/1528-61-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-76-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-91-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-72-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-75-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-67-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-79-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-82-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-85-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-88-0x0000000000970000-0x0000000000A12000-memory.dmp

Filesize
648KB

Download
memory/4232-69-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-96-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-99-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-102-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-105-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-108-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-111-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-113-0x0000000000970000-0x0000000000A12000-memory.dmp

Filesize
648KB

Download
memory/4232-112-0x0000000000970000-0x0000000000A12000-memory.dmp

Filesize
648KB

Download
memory/4232-117-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download
memory/4232-120-0x0000000000400000-0x000000000067A000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing