socks5systemz | abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d

General

Target

abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe
Size

4.8MB
MD5

5becf01c4117b3ef5f9dc2b300d1a6cd
SHA1

9cf9f489d76b68390eaa3abdcc8b5fc3aa780fab
SHA256

abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d
SHA512

5306b924d73146a9be69303cf6bce7620365d87922223dec1eb2df61cd53abe78ecb00de11d45336e18df391c018caa195a7831f3c4de31bc7e3f952437294eb
SSDEEP

98304:m1MzvAmHb2DjMwHPuMacnSQii4FUMITFB0p8yqovQN33SkkQh:Qtm721vZSQixjIkqooN35r

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bbesdbj.com

http://bbesdbj.com/search/?q=67e28dd86f54a728120ffa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f88ff10c0ec92

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2588-92-0x0000000002250000-0x00000000022F2000-memory.dmp	family_socks5systemz

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

Processes:

abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmpm4atomp3freeconverter.exem4atomp3freeconverter.exe

pid process

2532 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
2964 m4atomp3freeconverter.exe
2588 m4atomp3freeconverter.exe

pid	process
2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
2964	m4atomp3freeconverter.exe
2588	m4atomp3freeconverter.exe

Loads dropped DLL 5 IoCs

Processes:

abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exeabd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp

pid	process
3040	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe
2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.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 91.211.247.248
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:

abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp

pid process

2532 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exeabd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp

description	pid	process	target process
PID 3040 wrote to memory of 2532	3040	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
PID 3040 wrote to memory of 2532	3040	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
PID 3040 wrote to memory of 2532	3040	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
PID 3040 wrote to memory of 2532	3040	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
PID 3040 wrote to memory of 2532	3040	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
PID 3040 wrote to memory of 2532	3040	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
PID 3040 wrote to memory of 2532	3040	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
PID 2532 wrote to memory of 2964	2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe
PID 2532 wrote to memory of 2964	2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe
PID 2532 wrote to memory of 2964	2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe
PID 2532 wrote to memory of 2964	2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe
PID 2532 wrote to memory of 2588	2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe
PID 2532 wrote to memory of 2588	2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe
PID 2532 wrote to memory of 2588	2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe
PID 2532 wrote to memory of 2588	2532	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe

C:\Users\Admin\AppData\Local\Temp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe
"C:\Users\Admin\AppData\Local\Temp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3040

C:\Users\Admin\AppData\Local\Temp\is-D550J.tmp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
"C:\Users\Admin\AppData\Local\Temp\is-D550J.tmp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp" /SL5="$3014E,4789193,54272,C:\Users\Admin\AppData\Local\Temp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2532

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -i
3⤵
- Executes dropped EXE
PID:2964

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -s
3⤵
- Executes dropped EXE
PID:2588

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

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Downloads

\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
Filesize
2.9MB

MD5
5f6bf192e098a390da1debc6b3fcd89a

SHA1
909cc1ea2cde20961759e7816391bc675d88f506

SHA256
48fbe9f34785a6a4538d4db3f74826a21055af69fa04f434f6888f0dde1c4ab0

SHA512
737cc0ed16ca878b5b65560723f7ca1f4d79abb90d9b403d8ebb887975f1795a2152c3c9334c098d495e03e31eea56ec74ff17f8f4bdb641af28abd358ac7311

Download Submit
\Users\Admin\AppData\Local\Temp\is-D550J.tmp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
Filesize
680KB

MD5
dafff71ba13e58daac2c21ed0ed54458

SHA1
ec169d6088ee3a539030ef630164dae1dd7d9a80

SHA256
167c4af51c1b261fc6bc53d7e4eab5cc5408ac4953518f1dcd129dbe62aca9fb

SHA512
ecd2f14d391892f82efea278949c0a20367bec0eefef159ad44915d008b462ba0ffb5b00175c5b7f9b9e1f2779f9ed562eb39cf143dd9f44b550f96a7c9bc719

Download Submit
\Users\Admin\AppData\Local\Temp\is-FQMP9.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-FQMP9.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2532-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2532-76-0x0000000003590000-0x000000000387E000-memory.dmp

Filesize
2.9MB

Download
memory/2532-9-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2532-64-0x0000000003590000-0x000000000387E000-memory.dmp

Filesize
2.9MB

Download
memory/2588-104-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-113-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-137-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-71-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-132-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-129-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-75-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-126-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-79-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-82-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-85-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-88-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-91-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-92-0x0000000002250000-0x00000000022F2000-memory.dmp

Filesize
648KB

Download
memory/2588-98-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-101-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-123-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-107-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-110-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-120-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2588-117-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2964-66-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2964-65-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/2964-69-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/3040-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3040-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3040-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads