socks5systemz | 7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3

General

Target

7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.exe
Size

4.6MB
MD5

b451ac86cd161d613e06b7298504c3bf
SHA1

0349f44015aaaf05a7d03d39c6a8187e7845f61c
SHA256

7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3
SHA512

042d32ed248a7e134f90d982a26d4a216269f7e2914874326a0d915ff377d6e70b1c41e328e5dab45fb779a5e2eb5dbe3e2916b54018254cb05dabc8a85ef08b
SSDEEP

98304:mxBpjnrb6kpW5CafQ3bLvvQTSd7jlg/e0Q+w0CbNAXNR3P:Sjnrekc5/ubLQTSd7u/PuhpSR3P

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bvsmpbu.com

http://bvsmpbu.com/search/?q=67e28dd83f08f52f150eab187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978f471ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff716c1e891923d

http://bvsmpbu.com/search/?q=67e28dd83f08f52f150eab187c27d78406abdd88be4b12eab517aa5c96bd86e892874e845a8bbc896c58e713bc90c91f36b5281fc235a925ed3e57d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9d3aca6b9e10

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1112-86-0x00000000024B0000-0x0000000002552000-memory.dmp	family_socks5systemz
behavioral1/memory/1112-109-0x00000000024B0000-0x0000000002552000-memory.dmp	family_socks5systemz
behavioral1/memory/1112-110-0x00000000024B0000-0x0000000002552000-memory.dmp	family_socks5systemz

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

Processes:

7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmpfanplayercloudfree32.exefanplayercloudfree32.exe

pid process

4700 7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp
3756 fanplayercloudfree32.exe
1112 fanplayercloudfree32.exe
Loads dropped DLL 1 IoCs

Processes:

7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp

pid process

4700 7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.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:

7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp

pid process

4700 7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp

pid	process
4700	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp
3756	fanplayercloudfree32.exe
1112	fanplayercloudfree32.exe

pid	process
4700	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
4700	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.exe7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp

description	pid	process	target process
PID 3640 wrote to memory of 4700	3640	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.exe	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp
PID 3640 wrote to memory of 4700	3640	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.exe	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp
PID 3640 wrote to memory of 4700	3640	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.exe	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp
PID 4700 wrote to memory of 3756	4700	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp	fanplayercloudfree32.exe
PID 4700 wrote to memory of 3756	4700	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp	fanplayercloudfree32.exe
PID 4700 wrote to memory of 3756	4700	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp	fanplayercloudfree32.exe
PID 4700 wrote to memory of 1112	4700	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp	fanplayercloudfree32.exe
PID 4700 wrote to memory of 1112	4700	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp	fanplayercloudfree32.exe
PID 4700 wrote to memory of 1112	4700	7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp	fanplayercloudfree32.exe

C:\Users\Admin\AppData\Local\Temp\7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.exe
"C:\Users\Admin\AppData\Local\Temp\7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3640

C:\Users\Admin\AppData\Local\Temp\is-3PMBA.tmp\7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp
"C:\Users\Admin\AppData\Local\Temp\is-3PMBA.tmp\7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp" /SL5="$501FA,4618013,54272,C:\Users\Admin\AppData\Local\Temp\7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4700

C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe
"C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe" -i
3⤵
- Executes dropped EXE
PID:3756

C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe
"C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe" -s
3⤵
- Executes dropped EXE
PID:1112

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 --field-trial-handle=3532,i,18320353784098040629,17273168055569331828,262144 --variations-seed-version --mojo-platform-channel-handle=4436 /prefetch:8
1⤵
PID:2300

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\FanPlayer Cloud Free\fanplayercloudfree32.exe
Filesize
2.5MB

MD5
60990d77ddd853565672c170e9c07a5d

SHA1
96ab4d35e6a9b7f7425b753540a7d067ae203b33

SHA256
4b8e983079200f7dbdee4e1c599a3e06007aecf1444029eeea658cd63aa39bb5

SHA512
51cdeafb9a418faffe1748b482f56088547f0c95cafb95b0a88679b2c82ac676fb84f09135888ba8a9317d4283c01a4b833d3645002d1e0f279537a21173b15e

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-3PMBA.tmp\7ae8a8b4708814f8680b882d3c4459c547f941a7d1b2411bea367b16d636eac3.tmp
Filesize
680KB

MD5
18d21bb7e8480255c7d24705a9a8c78e

SHA1
d1342b489f1b4921d0c8b100261e819db24f2981

SHA256
715669c614242a778a97873ed475b333700d2d4cb0277286f38fa6a2a551ef91

SHA512
d4eef761e23035f35c5bdcced816d678f009c2115f9a0cc2436395fdb07ecf84304c3341d2fcb0d299b881449f46c9b499c3903fb427a8f2bf3abb3840ee3cb3

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1112-96-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-99-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-117-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-114-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-110-0x00000000024B0000-0x0000000002552000-memory.dmp

Filesize
648KB

Download
memory/1112-109-0x00000000024B0000-0x0000000002552000-memory.dmp

Filesize
648KB

Download
memory/1112-68-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-108-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-105-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-102-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-71-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-74-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-77-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-80-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-83-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-86-0x00000000024B0000-0x0000000002552000-memory.dmp

Filesize
648KB

Download
memory/1112-90-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/1112-93-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/3640-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3640-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3640-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3756-63-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/3756-65-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/3756-61-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/3756-59-0x0000000000400000-0x000000000067E000-memory.dmp

Filesize
2.5MB

Download
memory/4700-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4700-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

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