socks5systemz | f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554

General

Target

f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.exe
Size

4.8MB
MD5

8f4cbb79fd1e48361807ca359c4a26d4
SHA1

1ec3abd8abe11fb3955489b937cddcfe1c3d6e0d
SHA256

f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554
SHA512

b4a25bf4b15011869fabead8f052f82f8fda3672f991f598fda38d63e0407e0601df755a61e2760be85b95d3ded26d31cb67776d66299ca320dfc70bb522bd64
SSDEEP

98304:mBABmsd8zKFJTPC8kLKcgKSfRFFfEYMQxxYUKJ8xVNCDBIBXgaYorO/9q1e:NziyJTP7cgKKRFFfDDxRKJwV8BIBQJi2

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

aqbwvzi.ru

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2216-89-0x0000000000900000-0x00000000009A2000-memory.dmp	family_socks5systemz

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

Processes:

f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exe

pid process

4580 f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp
2300 moonvoiceassist32_64.exe
2216 moonvoiceassist32_64.exe
Loads dropped DLL 1 IoCs

Processes:

f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp

pid process

4580 f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.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 91.211.247.248
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:

f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp

pid process

4580 f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp

pid	process
4580	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp
2300	moonvoiceassist32_64.exe
2216	moonvoiceassist32_64.exe

pid	process
4580	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp

description	ioc
Destination IP	152.89.198.214
Destination IP	91.211.247.248
Destination IP	91.211.247.248

pid	process
4580	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.exef5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp

description	pid	process	target process
PID 540 wrote to memory of 4580	540	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.exe	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp
PID 540 wrote to memory of 4580	540	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.exe	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp
PID 540 wrote to memory of 4580	540	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.exe	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp
PID 4580 wrote to memory of 2300	4580	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp	moonvoiceassist32_64.exe
PID 4580 wrote to memory of 2300	4580	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp	moonvoiceassist32_64.exe
PID 4580 wrote to memory of 2300	4580	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp	moonvoiceassist32_64.exe
PID 4580 wrote to memory of 2216	4580	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp	moonvoiceassist32_64.exe
PID 4580 wrote to memory of 2216	4580	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp	moonvoiceassist32_64.exe
PID 4580 wrote to memory of 2216	4580	f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp	moonvoiceassist32_64.exe

C:\Users\Admin\AppData\Local\Temp\f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.exe
"C:\Users\Admin\AppData\Local\Temp\f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:540

C:\Users\Admin\AppData\Local\Temp\is-2GMV3.tmp\f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp
"C:\Users\Admin\AppData\Local\Temp\is-2GMV3.tmp\f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp" /SL5="$501C6,4799375,54272,C:\Users\Admin\AppData\Local\Temp\f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4580

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -i
3⤵
- Executes dropped EXE
PID:2300

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -s
3⤵
- Executes dropped EXE
PID:2216

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe
Filesize
2.9MB

MD5
dbed52ee0daf9768eca030d64fd8ccff

SHA1
c38c18a3a969376925994b5676dab99b6ec8e289

SHA256
1c5a75ea9ac09ccbb45a619e961c1dc36d3fba85abda42b0dd0fd84c7f989111

SHA512
2cc9a5dc15fec3d578adfc1b027967b45b14d3233466ceb14d6710056034732519b35edf200f801591f42b7c778cedea3b4d63aaf70ddba7cdd004add497a538

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-2GMV3.tmp\f5dfbe86b4f129b1744c1ee7d900959d9ac0694b25f7a11f7ff388727f3d7554.tmp
Filesize
680KB

MD5
895d982b558dbe81e0d8d31e818f766e

SHA1
27d9e61b8edaf48db4c519be05f0f4ea33900a7a

SHA256
3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

SHA512
4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-EBNA3.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/540-70-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/540-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/540-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2216-89-0x0000000000900000-0x00000000009A2000-memory.dmp

Filesize
648KB

Download
memory/2216-95-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-116-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-67-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-113-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-69-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-110-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-107-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-72-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-75-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-76-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-79-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-82-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-85-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-88-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-104-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-101-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2216-98-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2300-60-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2300-59-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2300-63-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2300-65-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/4580-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4580-71-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

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