socks5systemz | 5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09

General

Target

5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.exe
Size

5.1MB
MD5

82005f23b2b25c12baef04dbc6826909
SHA1

c0cc90dffc8a95b515da98c1ddf671417c59c038
SHA256

5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09
SHA512

fd72b8291801687ab3d93ae33fb42e1fae27da6bd18533a92ad2ce513a107e9e7593dea9778aca8eabeb256e20462b47d1d3f167632d94b3dbe262f1101e0692
SSDEEP

98304:Cf4etLfRwGzmpnwNE4WrqssC++fLxl/Hj+ii9EPBq4CN+JXrPptclxB4nuNQxy:cdtLJw/pnm9WZsEfL3yi08B4ArXksuN1

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/1824-84-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
428	5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp
3152	mp3doctorfree32_64.exe
1824	mp3doctorfree32_64.exe

Loads dropped DLL 1 IoCs

pid	Process
428	5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp

Unexpected DNS network traffic destination 2 IoCs

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

description	ioc
Destination IP	141.98.234.31
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

pid	Process
428	5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4092 wrote to memory of 428	4092	5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.exe	73
PID 4092 wrote to memory of 428	4092	5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.exe	73
PID 4092 wrote to memory of 428	4092	5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.exe	73
PID 428 wrote to memory of 3152	428	5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp	74
PID 428 wrote to memory of 3152	428	5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp	74
PID 428 wrote to memory of 3152	428	5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp	74
PID 428 wrote to memory of 1824	428	5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp	75
PID 428 wrote to memory of 1824	428	5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp	75
PID 428 wrote to memory of 1824	428	5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp	75

C:\Users\Admin\AppData\Local\Temp\5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.exe
"C:\Users\Admin\AppData\Local\Temp\5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4092
- C:\Users\Admin\AppData\Local\Temp\is-6UP7R.tmp\5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-6UP7R.tmp\5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp" /SL5="$5022E,5086311,54272,C:\Users\Admin\AppData\Local\Temp\5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:428
- - C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
    "C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe" -i
    3⤵
    - Executes dropped EXE
    PID:3152
- - C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
    "C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1824

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\MP3Doctor Free 2020\mp3doctorfree32_64.exe

Filesize
3.8MB

MD5
b7d8dda6c10ce4eef9e955881b74ef50

SHA1
9284b34a24c48c70d8080bed255cdbcadc2824c1

SHA256
2e539d22dc4c9f025c5678cb87f3363aedfc2c6a0b4a7570ed38fe9edec1554e

SHA512
59fa4d85138f0819a1f40ab9381b99cb1fa29f8edb208ee458e6b746fa9aa239896bce9a5c5437f2e33b48b86d7a09f8378a2c185a8b6e79c5d77b3317901f81

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-6UP7R.tmp\5af1a13a69e8312e32344bbc4caee4939b8736daee15ac2153d856b61a206a09.tmp

Filesize
680KB

MD5
6f995e2d6c8d0d1d03cb3afcd1deafaf

SHA1
0319dbd8c7b44067b82fed5272059757a526b3aa

SHA256
cc4530fee96cf6e821fa1dbed0c46ac5310c57d6336999e3f93d29f78376f9eb

SHA512
207b4d327be81e71152ce35cb272362e9862e6002a6c01e9e9df37578c3764ac1c8d19b19e8e3b751162724490f06fea10611d7becabaff3863af993a90db16d

Download Submit
\Users\Admin\AppData\Local\Temp\is-JLLJ2.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/428-67-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/428-71-0x00007FFA72C70000-0x00007FFA72E4B000-memory.dmp

Filesize
1.9MB

Download
memory/428-16-0x00007FFA72C70000-0x00007FFA72E4B000-memory.dmp

Filesize
1.9MB

Download
memory/1824-106-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-91-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-128-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-125-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-122-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-68-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-119-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-72-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-75-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-78-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-81-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-84-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/1824-86-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-115-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-94-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-97-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-100-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-103-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-112-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1824-109-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/3152-60-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/3152-59-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/3152-63-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/4092-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4092-4-0x00007FFA72C70000-0x00007FFA72E4B000-memory.dmp

Filesize
1.9MB

Download
memory/4092-66-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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