socks5systemz | 27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d

General

Target

27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe
Size

4.8MB
MD5

738440cb4425bb7253bbcab469eb1d65
SHA1

3189852b404f823c63184062970d4605b6986f72
SHA256

27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d
SHA512

beb2b5e3349f4424b67e338de6c1aba0b05b8f837934ac98978c22c058c84c512c6506c1424eaec1ce717b0b2c007ed37f99992bd43b108b2196d1a3deb44b3c
SSDEEP

98304:mGo+Vx18QbQltfmrX4d1RVbQNkXF5ZvFVRBAZfTVogiUXXZnpAZ5Qd:vNVxGnHmb4d18UxzRqZ7VyUZnCfQd

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ckmfguu.net

http://ckmfguu.net/search/?q=67e28dd86f5ff42d4509ac187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f88f612c0e79d

http://ckmfguu.net/search/?q=67e28dd86f5ff42d4509ac187c27d78406abdd88be4b12eab517aa5c96bd86ec91804f865a8bbc896c58e713bc90c91836b5281fc235a925ed3e54d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c8e99c993bc567

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2652-93-0x0000000002350000-0x00000000023F2000-memory.dmp	family_socks5systemz
behavioral1/memory/2652-115-0x0000000002350000-0x00000000023F2000-memory.dmp	family_socks5systemz
behavioral1/memory/2652-116-0x0000000002350000-0x00000000023F2000-memory.dmp	family_socks5systemz

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

Processes:

27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmpfanplayercloudfree.exefanplayercloudfree.exe

pid process

3064 27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
1704 fanplayercloudfree.exe
2652 fanplayercloudfree.exe

pid	process
3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
1704	fanplayercloudfree.exe
2652	fanplayercloudfree.exe

Loads dropped DLL 5 IoCs

Processes:

27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp

pid	process
860	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe
3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.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:

27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp

pid process

3064 27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp

description	pid	process	target process
PID 860 wrote to memory of 3064	860	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
PID 860 wrote to memory of 3064	860	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
PID 860 wrote to memory of 3064	860	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
PID 860 wrote to memory of 3064	860	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
PID 860 wrote to memory of 3064	860	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
PID 860 wrote to memory of 3064	860	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
PID 860 wrote to memory of 3064	860	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
PID 3064 wrote to memory of 1704	3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp	fanplayercloudfree.exe
PID 3064 wrote to memory of 1704	3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp	fanplayercloudfree.exe
PID 3064 wrote to memory of 1704	3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp	fanplayercloudfree.exe
PID 3064 wrote to memory of 1704	3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp	fanplayercloudfree.exe
PID 3064 wrote to memory of 2652	3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp	fanplayercloudfree.exe
PID 3064 wrote to memory of 2652	3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp	fanplayercloudfree.exe
PID 3064 wrote to memory of 2652	3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp	fanplayercloudfree.exe
PID 3064 wrote to memory of 2652	3064	27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp	fanplayercloudfree.exe

C:\Users\Admin\AppData\Local\Temp\27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe
"C:\Users\Admin\AppData\Local\Temp\27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:860

C:\Users\Admin\AppData\Local\Temp\is-38SKO.tmp\27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
"C:\Users\Admin\AppData\Local\Temp\is-38SKO.tmp\27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp" /SL5="$7011E,4733795,54272,C:\Users\Admin\AppData\Local\Temp\27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3064

C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree.exe
"C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree.exe" -i
3⤵
- Executes dropped EXE
PID:1704

C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree.exe
"C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree.exe" -s
3⤵
- Executes dropped EXE
PID:2652

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

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Downloads

\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree.exe
Filesize
2.6MB

MD5
5affcfe7175920e211414de74403df9d

SHA1
5f17d84bb477d9f41d405314461815931d23c589

SHA256
def33dce7fc29cfa0ffdd5bbefd85758038e56141fa795b8129085df291f92f0

SHA512
243aa0b1661beda5a8f13b06ba672f2df1061bbf6eb5ecec8c78b55d1c2fb8c876ef35100b352e8e07964025014faeb2378c1b84fb76e69972d85918675f1596

Download Submit
\Users\Admin\AppData\Local\Temp\is-0N6C6.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-0N6C6.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-38SKO.tmp\27504944a6697ac7fa8a02685d8eb16f76f750f4361d8feaad815202cd53ec4d.tmp
Filesize
680KB

MD5
d787375ee990125a2be73fb10c85627e

SHA1
6a3244bd0c36592417636a11210ed947079081fd

SHA256
c6b91bc5b30a0d79a64d0035310246472d0a92e24a4cd274adfa3fc3489596a8

SHA512
25067cfd10d3ed1b9f81dfd6cbe3cfa1bca8853aada98a834ffb3ca32bb9fb48128467d17cd18ee60110225861587b846e3fd36246384d6f4df56ba961a88e2b

Download Submit
memory/860-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/860-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/860-72-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1704-69-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/1704-65-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/1704-67-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-97-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-112-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-121-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-74-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-118-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-78-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-81-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-84-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-87-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-90-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-93-0x0000000002350000-0x00000000023F2000-memory.dmp

Filesize
648KB

Download
memory/2652-116-0x0000000002350000-0x00000000023F2000-memory.dmp

Filesize
648KB

Download
memory/2652-100-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-103-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-106-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-109-0x0000000000400000-0x000000000069C000-memory.dmp

Filesize
2.6MB

Download
memory/2652-115-0x0000000002350000-0x00000000023F2000-memory.dmp

Filesize
648KB

Download
memory/3064-63-0x00000000034E0000-0x000000000377C000-memory.dmp

Filesize
2.6MB

Download
memory/3064-9-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3064-77-0x00000000034E0000-0x000000000377C000-memory.dmp

Filesize
2.6MB

Download
memory/3064-73-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads