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

ayhbfun.ru

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4172-85-0x00000000008C0000-0x0000000000962000-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

3240 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
3488 m4atomp3freeconverter.exe
4172 m4atomp3freeconverter.exe
Loads dropped DLL 1 IoCs

Processes:

abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp

pid process

3240 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 152.89.198.214
Destination IP 141.98.234.31
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

3240 abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp

pid	process
3240	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
3488	m4atomp3freeconverter.exe
4172	m4atomp3freeconverter.exe

pid	process
3240	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp

description	ioc
Destination IP	152.89.198.214
Destination IP	141.98.234.31
Destination IP	91.211.247.248

pid	process
3240	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exeabd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp

description	pid	process	target process
PID 2260 wrote to memory of 3240	2260	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
PID 2260 wrote to memory of 3240	2260	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
PID 2260 wrote to memory of 3240	2260	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
PID 3240 wrote to memory of 3488	3240	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe
PID 3240 wrote to memory of 3488	3240	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe
PID 3240 wrote to memory of 3488	3240	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe
PID 3240 wrote to memory of 4172	3240	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe
PID 3240 wrote to memory of 4172	3240	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe
PID 3240 wrote to memory of 4172	3240	abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp	m4atomp3freeconverter.exe

C:\Users\Admin\AppData\Local\Temp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe
"C:\Users\Admin\AppData\Local\Temp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2260

C:\Users\Admin\AppData\Local\Temp\is-NUMTM.tmp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp
"C:\Users\Admin\AppData\Local\Temp\is-NUMTM.tmp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.tmp" /SL5="$80090,4789193,54272,C:\Users\Admin\AppData\Local\Temp\abd03c8a4bbf0e66b61964f1b3f2dedf9d1e9c3a028ce9823a53918e38a0a47d.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3240

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:3488

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:4172

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4196,i,10373433614523925616,13586256558317053467,262144 --variations-seed-version --mojo-platform-channel-handle=4004 /prefetch:8
1⤵
PID:4224

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\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
Filesize
2.9MB

MD5
5f6bf192e098a390da1debc6b3fcd89a

SHA1
909cc1ea2cde20961759e7816391bc675d88f506

SHA256
48fbe9f34785a6a4538d4db3f74826a21055af69fa04f434f6888f0dde1c4ab0

SHA512
737cc0ed16ca878b5b65560723f7ca1f4d79abb90d9b403d8ebb887975f1795a2152c3c9334c098d495e03e31eea56ec74ff17f8f4bdb641af28abd358ac7311

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-3PN8M.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5
dafff71ba13e58daac2c21ed0ed54458

SHA1
ec169d6088ee3a539030ef630164dae1dd7d9a80

SHA256
167c4af51c1b261fc6bc53d7e4eab5cc5408ac4953518f1dcd129dbe62aca9fb

SHA512
ecd2f14d391892f82efea278949c0a20367bec0eefef159ad44915d008b462ba0ffb5b00175c5b7f9b9e1f2779f9ed562eb39cf143dd9f44b550f96a7c9bc719

Download Submit
memory/2260-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2260-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2260-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3240-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3240-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3488-59-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/3488-60-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/3488-63-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-70-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-87-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-73-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-76-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-79-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-82-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-85-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/4172-67-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-92-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-95-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-98-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-101-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-104-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-107-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-110-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download
memory/4172-113-0x0000000000400000-0x00000000006EE000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing