socks5systemz | 31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13

General

Target

31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.exe
Size

5.0MB
MD5

3e61ab31edcda56880c30dbd7117b171
SHA1

82b4a97a58a33f1fb79614ae437cca40f9890e59
SHA256

31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13
SHA512

a3ccf940f1ae7e7aafe19933b0c851dc29f4edba5989b20f2ca245c0e6218544bbae05b68d476fc27dae265004fb1e3b038d460ebc0c9f8a98d9c7c74bb67655
SSDEEP

98304:maRxCCbcXD+S/1GPgVpnRg6LMmqQQBTicK2nXj/VYuRnitgBEQO+Rm:HxdW+S/1igVvg6AljOcK2zFNOf

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1876-91-0x0000000002460000-0x0000000002502000-memory.dmp	family_socks5systemz
behavioral2/memory/1876-117-0x0000000002460000-0x0000000002502000-memory.dmp	family_socks5systemz
behavioral2/memory/1876-118-0x0000000002460000-0x0000000002502000-memory.dmp	family_socks5systemz

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

Processes:

31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmpmidiplayer32.exemidiplayer32.exe

pid process

3744 31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp
3004 midiplayer32.exe
1876 midiplayer32.exe

Loads dropped DLL 3 IoCs

Processes:

31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp

pid	process
3744	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp
3744	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp
3744	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.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:

31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp

pid process

3744 31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp

description	ioc
Destination IP	91.211.247.248

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.exe31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp

description	pid	process	target process
PID 4408 wrote to memory of 3744	4408	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.exe	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp
PID 4408 wrote to memory of 3744	4408	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.exe	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp
PID 4408 wrote to memory of 3744	4408	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.exe	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp
PID 3744 wrote to memory of 3004	3744	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp	midiplayer32.exe
PID 3744 wrote to memory of 3004	3744	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp	midiplayer32.exe
PID 3744 wrote to memory of 3004	3744	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp	midiplayer32.exe
PID 3744 wrote to memory of 1876	3744	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp	midiplayer32.exe
PID 3744 wrote to memory of 1876	3744	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp	midiplayer32.exe
PID 3744 wrote to memory of 1876	3744	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp	midiplayer32.exe

C:\Users\Admin\AppData\Local\Temp\31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.exe
"C:\Users\Admin\AppData\Local\Temp\31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4408

C:\Users\Admin\AppData\Local\Temp\is-LF638.tmp\31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp
"C:\Users\Admin\AppData\Local\Temp\is-LF638.tmp\31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp" /SL5="$40236,4998695,54272,C:\Users\Admin\AppData\Local\Temp\31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3744

C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe
"C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe" -i
3⤵
- Executes dropped EXE
PID:3004

C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe
"C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe" -s
3⤵
- Executes dropped EXE
PID:1876

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\Sounder Midi Player\midiplayer32.exe
Filesize
2.3MB

MD5
7528590b175959fab37ec5d22431512c

SHA1
1b213cd8dd8d6a91212c05a15b6451f8c394f3fe

SHA256
47080f836799bdc44c18cfa91b748c66a52a629f098adc2fc61e38e0c9b1f180

SHA512
c5b5fdd97a621a1d955c1c28b651a139e4bd6f5d911bbc67c18d54446afed3a793205129983bb20d4d37a94ce34ab569978f6c3746664a0d3c3970a83389ce5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-31UEL.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-31UEL.tmp\_isetup\_isdecmp.dll
Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-LF638.tmp\31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp
Filesize
680KB

MD5
29ac48e0713a4220ff4b4b47efe542b4

SHA1
9ea8bdf5547a541b755f4b2c0bc14bf817885e94

SHA256
deead3dd651930ad0bec5d7bae647d7a1637b48bb7495593995218c4cd6dd67c

SHA512
501cdc7df40fb0cd1a114b4d5f5dcab765141c58f29bafa1e4a816319354a3d6d9e0d4b2ee5a2fad64f3fb08fb7bbdaad30551587a875f8fbdc2acdb8f67a3d4

Download Submit
memory/1876-107-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-84-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-125-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-122-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-118-0x0000000002460000-0x0000000002502000-memory.dmp

Filesize
648KB

Download
memory/1876-117-0x0000000002460000-0x0000000002502000-memory.dmp

Filesize
648KB

Download
memory/1876-116-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-74-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-113-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-110-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-77-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-80-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-81-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-104-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-87-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-90-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-91-0x0000000002460000-0x0000000002502000-memory.dmp

Filesize
648KB

Download
memory/1876-96-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/1876-101-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/3004-70-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/3004-71-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/3004-67-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/3004-65-0x0000000000400000-0x000000000065D000-memory.dmp

Filesize
2.4MB

Download
memory/3744-22-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3744-76-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4408-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4408-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4408-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

pid	process
3744	31492554f1dcac129a92f740550daaab6be35c19920bfcfcb47b3f1176c39a13.tmp
3004	midiplayer32.exe
1876	midiplayer32.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads