socks5systemz | b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9

General

Target

b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.exe
Size

5.0MB
MD5

13e4fce9790705976c96a4c79852b7aa
SHA1

b2844504726f3b6ac2dbe6f3ef2a23fd103374c9
SHA256

b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9
SHA512

428fcd78d095172ee920dd826d0bb94f8eee855e447226fbf492cb5bac4338b02ebe67f5559f8e465d96ca654e8a2dc774c05a7a6cdf28be9f223c66c344ca79
SSDEEP

98304:+SgdoplfInh7Po8CFvF+PcaYvOImEnzYO5HT6/QvHALkxECG4/dhngKbd1ZR:udoHwnlQ30NY1mEzXhu/QvHALk+CG44I

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://ckqbuwy.net/search/?q=67e28dd83859fa2b145ba44a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a628cf616c0e791

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2512-98-0x0000000002590000-0x0000000002632000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp
2712	audiograil32.exe
2512	audiograil32.exe

Loads dropped DLL 7 IoCs

pid	Process
2984	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.exe
2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp
2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp
2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp
2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp
2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp
2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

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

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 2052	2984	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.exe	28
PID 2984 wrote to memory of 2052	2984	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.exe	28
PID 2984 wrote to memory of 2052	2984	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.exe	28
PID 2984 wrote to memory of 2052	2984	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.exe	28
PID 2984 wrote to memory of 2052	2984	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.exe	28
PID 2984 wrote to memory of 2052	2984	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.exe	28
PID 2984 wrote to memory of 2052	2984	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.exe	28
PID 2052 wrote to memory of 2712	2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp	29
PID 2052 wrote to memory of 2712	2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp	29
PID 2052 wrote to memory of 2712	2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp	29
PID 2052 wrote to memory of 2712	2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp	29
PID 2052 wrote to memory of 2512	2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp	30
PID 2052 wrote to memory of 2512	2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp	30
PID 2052 wrote to memory of 2512	2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp	30
PID 2052 wrote to memory of 2512	2052	b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp	30

C:\Users\Admin\AppData\Local\Temp\b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.exe
"C:\Users\Admin\AppData\Local\Temp\b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Users\Admin\AppData\Local\Temp\is-J3BO7.tmp\b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-J3BO7.tmp\b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp" /SL5="$500F8,4958523,54272,C:\Users\Admin\AppData\Local\Temp\b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:2052
- - C:\Users\Admin\AppData\Local\Audio Grail\audiograil32.exe
    "C:\Users\Admin\AppData\Local\Audio Grail\audiograil32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2712
- - C:\Users\Admin\AppData\Local\Audio Grail\audiograil32.exe
    "C:\Users\Admin\AppData\Local\Audio Grail\audiograil32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Audio Grail\libeay32.dll

Filesize
2.0MB

MD5
1176a2fcbc3cfb77207db7575dd6a522

SHA1
e0a854c77a65e542712c9fe3feae2331fcddb7f4

SHA256
553200e21658e7976d496c52cc1aeb50446b877ccda4f0b073a553ec3fb48560

SHA512
bb00340e4931342c4db499d68e98542f401a985c062810225ee661a7a289a885dab8c64f37fb231212ad2a5d703f3fd0528e8402fc1033cf4128d075714e3f34

Download Submit
\Users\Admin\AppData\Local\Audio Grail\audiograil32.exe

Filesize
2.2MB

MD5
ffdb29541564881d8710a4338860c608

SHA1
fc1de0d69046496f4a7a754b3deb13b0901bceaa

SHA256
d2df891eed3a8e395192a76eaccdda39251743dfdaa58d21f7bb6d7cba6e6131

SHA512
0cf3a28136f1cfed93a054695b3fff57fffd08094476d3a9971986a676e3c2fb5a7f05ff0cdfee8c095d64ed329ad85d67792bc793f1cc31a80d306b86d174ca

Download Submit
\Users\Admin\AppData\Local\Temp\is-J3BO7.tmp\b20f9b18894ef38d25edfca8c8caa71c5b8a16ceab31d953d6f7205d754b22d9.tmp

Filesize
695KB

MD5
0a8648cc323215efcac2e6165c363f48

SHA1
a66861f32817aaf01911157141de67d95cb3b6c1

SHA256
dd8c6290b14e17ebb07ded25931949426e9cc96d623ae3b84db1d9a7d8e21d16

SHA512
29aa3ea1eb0a6349a6a47d1e5312d0f26327c4c0590a37506c7df11eb198ea8f9d1e016ae024683fb40b9f79da0bb5bbeb21bbfecc66e6b213fff90d595839e8

Download Submit
\Users\Admin\AppData\Local\Temp\is-VQ83E.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-VQ83E.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
\Users\Admin\AppData\Local\Temp\is-VQ83E.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2052-81-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2052-11-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2052-65-0x0000000003870000-0x0000000003AA6000-memory.dmp

Filesize
2.2MB

Download
memory/2512-116-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-98-0x0000000002590000-0x0000000002632000-memory.dmp

Filesize
648KB

Download
memory/2512-143-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-138-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-135-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-132-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-129-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-82-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-85-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-88-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-91-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-94-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-97-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-126-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-104-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-107-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-110-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-113-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-123-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2512-119-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2712-68-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2712-74-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2712-72-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2712-69-0x0000000000400000-0x0000000000636000-memory.dmp

Filesize
2.2MB

Download
memory/2984-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2984-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2984-80-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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