socks5systemz | b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092

General

Target

b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.exe
Size

5.0MB
MD5

966614786da27d7102628c9fab78adea
SHA1

cfdee9b518863d4aa2068e242e2bf1640e6886cf
SHA256

b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092
SHA512

f65d9f3e4244758fc71b3fb5ff61be529d31d6e24a5b25f62325ed1b0c2399825110f3887638bb19f2e163b67e46973027d1e3c9a92a51ef920caf07396cd331
SSDEEP

98304:CW4fU/YRiA7XMmuALuFiyjfaAXKt33eLm6gPXKQdEPIBz4KWS60Gtwe5wQxle:J4+Q7X1L2iefaWKtHX6gPCPIN4KWSytm

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1948-86-0x0000000000A80000-0x0000000000B22000-memory.dmp	family_socks5systemz
behavioral1/memory/1948-109-0x0000000000A80000-0x0000000000B22000-memory.dmp	family_socks5systemz
behavioral1/memory/1948-108-0x0000000000A80000-0x0000000000B22000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
4880	b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.tmp
3044	mp3doctorfree32.exe
1948	mp3doctorfree32.exe

Loads dropped DLL 1 IoCs

pid	Process
4880	b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.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
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
4880	b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4500 wrote to memory of 4880	4500	b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.exe	82
PID 4500 wrote to memory of 4880	4500	b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.exe	82
PID 4500 wrote to memory of 4880	4500	b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.exe	82
PID 4880 wrote to memory of 3044	4880	b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.tmp	83
PID 4880 wrote to memory of 3044	4880	b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.tmp	83
PID 4880 wrote to memory of 3044	4880	b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.tmp	83
PID 4880 wrote to memory of 1948	4880	b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.tmp	84
PID 4880 wrote to memory of 1948	4880	b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.tmp	84
PID 4880 wrote to memory of 1948	4880	b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.tmp	84

C:\Users\Admin\AppData\Local\Temp\b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.exe
"C:\Users\Admin\AppData\Local\Temp\b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4500
- C:\Users\Admin\AppData\Local\Temp\is-Q3PIN.tmp\b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-Q3PIN.tmp\b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.tmp" /SL5="$10005E,4962069,54272,C:\Users\Admin\AppData\Local\Temp\b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:4880
- - C:\Users\Admin\AppData\Local\MP3Doctor Free 2021\mp3doctorfree32.exe
    "C:\Users\Admin\AppData\Local\MP3Doctor Free 2021\mp3doctorfree32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:3044
- - C:\Users\Admin\AppData\Local\MP3Doctor Free 2021\mp3doctorfree32.exe
    "C:\Users\Admin\AppData\Local\MP3Doctor Free 2021\mp3doctorfree32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:1948

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 2021\mp3doctorfree32.exe

Filesize
3.5MB

MD5
0b0460ac7fa609b3ffde6e2edb2c59c5

SHA1
acd207313b73b8d2365badb202a33492a6ad26d8

SHA256
4c5ab64184e2c9bbf332b428969918a946af02aae3d2c018f58a08fc59f763a7

SHA512
29bbbe83483ab8c93a9035c7835b2b564dde439237b0f03734dcce81bf3c5cdc5d8998223169c0b57e5fb3598e8743c02655cb4824e8771421463b4bc8511d37

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-83AM8.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-Q3PIN.tmp\b70aede978fe732b1a9c16615971ecb5e3959edcc96156431f5fbf6c4593c092.tmp

Filesize
680KB

MD5
ccb0aaf8d3c06066757797254c79d1e4

SHA1
ed94ebd53602b25e6ae0d78c4fd25f74d0c3f688

SHA256
eb2f1a419f65636db628e3047fd9786a7a156c39a86433c5afa8238ed619aabd

SHA512
34007e899fc813653d2518a0201347dd738cc9c8adf0324e158c117b4ceef6537c15a4fe72c691b28f19c77b56b14aef7f6c7e3e8b8a3bcbd9391783ed1bed10

Download Submit
memory/1948-93-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-77-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-117-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-114-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-108-0x0000000000A80000-0x0000000000B22000-memory.dmp

Filesize
648KB

Download
memory/1948-109-0x0000000000A80000-0x0000000000B22000-memory.dmp

Filesize
648KB

Download
memory/1948-110-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-67-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-105-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-102-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-70-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-73-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-74-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-99-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-80-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-83-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-86-0x0000000000A80000-0x0000000000B22000-memory.dmp

Filesize
648KB

Download
memory/1948-88-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1948-96-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3044-63-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3044-64-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3044-60-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3044-59-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/4500-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4500-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4500-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4880-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4880-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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