socks5systemz | 0f5477b1eef752e1c26ae01c34cf9cc976cd60d2fa9e436131978cf4443c71d0

General

Target

0f5477b1eef752e1c26ae01c34cf9cc976cd60d2fa9e436131978cf4443c71d0.exe
Size

4.4MB
MD5

e5d4bec23f8e598ee2dbcfd0d7c89669
SHA1

a5414667409e779a675e298d6af75d624aed6e45
SHA256

0f5477b1eef752e1c26ae01c34cf9cc976cd60d2fa9e436131978cf4443c71d0
SHA512

5a62b62159d43b413fac953899f021ebbe507b1b85bd843681e04cf3e6e01deb678109b7c79c0d82b745e1b47084ab12034860f734e98a8b2ee754761645abb2
SSDEEP

98304:7a6CKyoS7k9rnRvt2byl0uHrC7fOBPZtNZftodZKe1hj62It210K:xyvkVnRvtjl0mr6fm7ZSTKeuQ

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bfpkcwe.com/search/?q=67e28dd86809f27b415ba51b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ffb11c0e991993c

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2352-91-0x0000000000910000-0x00000000009B2000-memory.dmp	family_socks5systemz
behavioral2/memory/2352-95-0x0000000000910000-0x00000000009B2000-memory.dmp	family_socks5systemz
behavioral2/memory/2352-104-0x0000000000910000-0x00000000009B2000-memory.dmp	family_socks5systemz

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

Processes:

is-DBQBF.tmpmplayercodecpack.exemplayercodecpack.exe

pid process

4764 is-DBQBF.tmp
2516 mplayercodecpack.exe
2352 mplayercodecpack.exe
Loads dropped DLL 3 IoCs

Processes:

is-DBQBF.tmp

pid process

4764 is-DBQBF.tmp
4764 is-DBQBF.tmp
4764 is-DBQBF.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

pid	process
4764	is-DBQBF.tmp
2516	mplayercodecpack.exe
2352	mplayercodecpack.exe

pid	process
4764	is-DBQBF.tmp
4764	is-DBQBF.tmp
4764	is-DBQBF.tmp

description	ioc
Destination IP	45.155.250.90

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

0f5477b1eef752e1c26ae01c34cf9cc976cd60d2fa9e436131978cf4443c71d0.exeis-DBQBF.tmp

description	pid	process	target process
PID 3796 wrote to memory of 4764	3796	0f5477b1eef752e1c26ae01c34cf9cc976cd60d2fa9e436131978cf4443c71d0.exe	is-DBQBF.tmp
PID 3796 wrote to memory of 4764	3796	0f5477b1eef752e1c26ae01c34cf9cc976cd60d2fa9e436131978cf4443c71d0.exe	is-DBQBF.tmp
PID 3796 wrote to memory of 4764	3796	0f5477b1eef752e1c26ae01c34cf9cc976cd60d2fa9e436131978cf4443c71d0.exe	is-DBQBF.tmp
PID 4764 wrote to memory of 2516	4764	is-DBQBF.tmp	mplayercodecpack.exe
PID 4764 wrote to memory of 2516	4764	is-DBQBF.tmp	mplayercodecpack.exe
PID 4764 wrote to memory of 2516	4764	is-DBQBF.tmp	mplayercodecpack.exe
PID 4764 wrote to memory of 2352	4764	is-DBQBF.tmp	mplayercodecpack.exe
PID 4764 wrote to memory of 2352	4764	is-DBQBF.tmp	mplayercodecpack.exe
PID 4764 wrote to memory of 2352	4764	is-DBQBF.tmp	mplayercodecpack.exe

C:\Users\Admin\AppData\Local\Temp\0f5477b1eef752e1c26ae01c34cf9cc976cd60d2fa9e436131978cf4443c71d0.exe
"C:\Users\Admin\AppData\Local\Temp\0f5477b1eef752e1c26ae01c34cf9cc976cd60d2fa9e436131978cf4443c71d0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3796

C:\Users\Admin\AppData\Local\Temp\is-0UPVO.tmp\is-DBQBF.tmp
"C:\Users\Admin\AppData\Local\Temp\is-0UPVO.tmp\is-DBQBF.tmp" /SL4 $601FE "C:\Users\Admin\AppData\Local\Temp\0f5477b1eef752e1c26ae01c34cf9cc976cd60d2fa9e436131978cf4443c71d0.exe" 4380200 52224
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4764

C:\Users\Admin\AppData\Local\Media Player Codec Pack\mplayercodecpack.exe
"C:\Users\Admin\AppData\Local\Media Player Codec Pack\mplayercodecpack.exe" -i
3⤵
- Executes dropped EXE
PID:2516

C:\Users\Admin\AppData\Local\Media Player Codec Pack\mplayercodecpack.exe
"C:\Users\Admin\AppData\Local\Media Player Codec Pack\mplayercodecpack.exe" -s
3⤵
- Executes dropped EXE
PID:2352

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\Media Player Codec Pack\mplayercodecpack.exe
Filesize
2.1MB

MD5
0db48631c38045e30ed6dcc92b4ffdc1

SHA1
0d9658f68510554848fb781ea1c50f32898c29dd

SHA256
53b2c84eb64e1c0796442a3724725c4248f9cfd94e2eb4cc821e81cc8c6cd1b7

SHA512
66a65da40c4ad40728e1b992009f170abc179b1a3896ffd09a38a5447dcca388b8ad3040c7f83d9de65dc07cc7e26245dfcf1f4b4ecc487690b5e201213a0597

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0UPVO.tmp\is-DBQBF.tmp
Filesize
648KB

MD5
e0f9ee58d297ea2c10e6547c74c3b91f

SHA1
29cc0484889b683f4036c6ac373bb40ec30ea038

SHA256
baec594342e02add44b7dce8cfe047693111b7dd54c1401ebeae6720563c0257

SHA512
999485df31498241e2bdbeeccc991e67195acbf8641f989741228e1f8f5bf765aefc30d0f42546c77365d7041cc8aa63b5f24c666ab116694d7de764a6e36ad6

Download Submit
\Users\Admin\AppData\Local\Temp\is-EHIB6.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-EHIB6.tmp\_isetup\_isdecmp.dll
Filesize
32KB

MD5
b4786eb1e1a93633ad1b4c112514c893

SHA1
734750b771d0809c88508e4feb788d7701e6dada

SHA256
2ae4169f721beb389a661e6dbb18bc84ef38556af1f46807da9d87aec2a6f06f

SHA512
0882d2aa163ece22796f837111db0d55158098035005e57cd2e9b8d59dc2e582207840bf98bee534b81c368acf60ab5d8ecbe762209273bda067a215cdb2c0c6

Download Submit
memory/2352-110-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-94-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-140-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-135-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-132-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-129-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-72-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-126-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-123-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-75-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-120-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-79-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-80-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-83-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-86-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-89-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-91-0x0000000000910000-0x00000000009B2000-memory.dmp

Filesize
648KB

Download
memory/2352-116-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-95-0x0000000000910000-0x00000000009B2000-memory.dmp

Filesize
648KB

Download
memory/2352-100-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-103-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-104-0x0000000000910000-0x00000000009B2000-memory.dmp

Filesize
648KB

Download
memory/2352-107-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2352-113-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2516-68-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2516-69-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2516-65-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/2516-64-0x0000000000400000-0x0000000000626000-memory.dmp

Filesize
2.1MB

Download
memory/3796-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3796-73-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4764-9-0x0000000000610000-0x0000000000611000-memory.dmp

Filesize
4KB

Download
memory/4764-76-0x0000000000610000-0x0000000000611000-memory.dmp

Filesize
4KB

Download
memory/4764-74-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download

Analysis

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