socks5systemz | a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104

General

Target

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe
Size

5.0MB
MD5

ea57f86fac8e38c88cb89961bbb9efeb
SHA1

0d1aa5a2d5e63cdd256d512e0a50b7a03c3cdc01
SHA256

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104
SHA512

2dea5c5cb4f0077e8cc3c90d76ca87650a615be35e5fda87ba11fa41d0fdcc756f8a1e7cfe22c3fd358088643449e8e002f963892743278dbf41f891de1c7599
SSDEEP

98304:m6fp6ixcfmlSgztaS+QoNbQXHAkV3goQijrYElPOZn0T0lLl1r6PTPZfy:9sixc+lSgztaMtDVwqQ0OZ0glLl9+k

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

cecodue.net

http://cecodue.net/search/?q=67e28dd86c0ca77c400cfe4c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa44e8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c2ed929c39

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4560-82-0x0000000000A20000-0x0000000000AC2000-memory.dmp	family_socks5systemz

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

Processes:

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmpmoonvoiceassist.exemoonvoiceassist.exe

pid process

4344 a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
3140 moonvoiceassist.exe
4560 moonvoiceassist.exe
Loads dropped DLL 1 IoCs

Processes:

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

pid process

4344 a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.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
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

pid process

4344 a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

pid	process
4344	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
3140	moonvoiceassist.exe
4560	moonvoiceassist.exe

pid	process
4344	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
4344	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exea67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp

description	pid	process	target process
PID 2872 wrote to memory of 4344	2872	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 2872 wrote to memory of 4344	2872	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 2872 wrote to memory of 4344	2872	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
PID 4344 wrote to memory of 3140	4344	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 4344 wrote to memory of 3140	4344	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 4344 wrote to memory of 3140	4344	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 4344 wrote to memory of 4560	4344	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 4344 wrote to memory of 4560	4344	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe
PID 4344 wrote to memory of 4560	4344	a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp	moonvoiceassist.exe

C:\Users\Admin\AppData\Local\Temp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe
"C:\Users\Admin\AppData\Local\Temp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2872

C:\Users\Admin\AppData\Local\Temp\is-G09O6.tmp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
"C:\Users\Admin\AppData\Local\Temp\is-G09O6.tmp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp" /SL5="$2101DE,4984627,54272,C:\Users\Admin\AppData\Local\Temp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4344

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe" -i
3⤵
- Executes dropped EXE
PID:3140

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist.exe" -s
3⤵
- Executes dropped EXE
PID:4560

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\Moon Voice Assist\moonvoiceassist.exe
Filesize
3.4MB

MD5
bf62e0e8e4f51d92070bc9618b3062eb

SHA1
f6f66fb1b4235405da7375b0f04de9f2d8b76989

SHA256
3f4e0dd0f41d2005edef4c3898c4c05823effc80d63f2d5ab63e0fdde7458151

SHA512
1e1bdd43241e65abd495480aa735fe96f6d979c80ef77e63651b802022dfdbbb9af894a96c7b1c1b3c42e74ca6036de04663744d728ff327ae9eef17a9727337

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-G09O6.tmp\a67139a28f7bb728ccc3061675e48f833d3cc509de53023c492c192b2bf46104.tmp
Filesize
680KB

MD5
bb765f2ae7f9da76f9edef8dde07f1cf

SHA1
ba5af8f092247d9a81d9d50d5390bbe5a280501a

SHA256
65b94a7e8d0e19c89c871b49457934d80365d9a9c2ff781509a1cb68421da552

SHA512
a6d7f16c4bb1e6dde9e221ae343a2e46de39b314f56bb9877574b29d14becd209f131a5b649faa97aa847c252fe379b96a71791bdd1f102e054fafb7a8e0b0aa

Download Submit
\Users\Admin\AppData\Local\Temp\is-TJ23J.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/2872-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2872-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2872-66-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3140-59-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/3140-60-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/3140-63-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4344-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4344-67-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4560-77-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-96-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-74-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-68-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-80-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-82-0x0000000000A20000-0x0000000000AC2000-memory.dmp

Filesize
648KB

Download
memory/4560-85-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-90-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-93-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-71-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-99-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-102-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-106-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-109-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-112-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-115-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-118-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-121-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-124-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download
memory/4560-129-0x0000000000400000-0x0000000000760000-memory.dmp

Filesize
3.4MB

Download

Analysis

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