socks5systemz | 66a40c3a8d62251755af05ad75e3fb190eedec68665f48072dd22b44f687b8b6

General

Target

d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe
Size

3.8MB
MD5

b0e24b7244b9e95971df2253559bdb12
SHA1

1ac4cb52206e8ccec4b35e4f81f5005daa11d347
SHA256

d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b
SHA512

74c2b382cec9efdb88a7749c028a7d40228859420127d7efda31b468f7282a5175d05d1082269304f38cee6371095489b5e1f5eab50ad90ec759790a3361f160
SSDEEP

98304:NluzbsF83EGLZ7tvK+ZhIyu/SI0Hu0CYwKXAjQX6odP/3:CzAW0O7AOu/EHuuwKXNX6oZv

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2788-84-0x00000000025D0000-0x0000000002672000-memory.dmp	family_socks5systemz
behavioral1/memory/2788-106-0x00000000025D0000-0x0000000002672000-memory.dmp	family_socks5systemz
behavioral1/memory/2788-107-0x00000000025D0000-0x0000000002672000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp
2980	midi2mp3converter32.exe
2788	midi2mp3converter32.exe

Loads dropped DLL 5 IoCs

pid	Process
3016	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe
2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp
2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp
2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp
2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.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	141.98.234.31

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

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	midi2mp3converter32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	midi2mp3converter32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp
2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3016 wrote to memory of 2152	3016	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe	30
PID 3016 wrote to memory of 2152	3016	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe	30
PID 3016 wrote to memory of 2152	3016	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe	30
PID 3016 wrote to memory of 2152	3016	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe	30
PID 3016 wrote to memory of 2152	3016	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe	30
PID 3016 wrote to memory of 2152	3016	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe	30
PID 3016 wrote to memory of 2152	3016	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe	30
PID 2152 wrote to memory of 2980	2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp	31
PID 2152 wrote to memory of 2980	2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp	31
PID 2152 wrote to memory of 2980	2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp	31
PID 2152 wrote to memory of 2980	2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp	31
PID 2152 wrote to memory of 2788	2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp	32
PID 2152 wrote to memory of 2788	2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp	32
PID 2152 wrote to memory of 2788	2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp	32
PID 2152 wrote to memory of 2788	2152	d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp	32

C:\Users\Admin\AppData\Local\Temp\d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe
"C:\Users\Admin\AppData\Local\Temp\d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3016
- C:\Users\Admin\AppData\Local\Temp\is-QGQ4B.tmp\d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-QGQ4B.tmp\d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp" /SL5="$30144,3745078,54272,C:\Users\Admin\AppData\Local\Temp\d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2152
- - C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter32.exe
    "C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter32.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2980
- - C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter32.exe
    "C:\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter32.exe" -s
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2788

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Direct MIDI to MP3 Converter\midi2mp3converter32.exe

Filesize
4.1MB

MD5
eccbf7b58336610a518d21ea9a796e40

SHA1
325c0e58759d0c3062b198458edacf567a4b8848

SHA256
dc74a91814c3ef0bba9cafd5d17b2550085505a6faa9dcd9e0e34fcdf4500ebb

SHA512
0f17f31e95c2027aa76ccd270643817dc24f18dd9fcf5c635acc11e1fce6bf6d35581786ca1634b68abfd77dbc9c904861f72f1dc472b52c3c839ad98d4d08a4

Download Submit
\Users\Admin\AppData\Local\Temp\is-93MO1.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-93MO1.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-QGQ4B.tmp\d072eaf6f16761ed0abb1f73d5e79225fdae23824fb9ac618d12788346f4982b.tmp

Filesize
692KB

MD5
1eb3e9399c5013c37a44cdf5a17ceaf6

SHA1
1c3cd272348e09cea6d1da0a498c0fcbc2d5beac

SHA256
2b44cd29d7e79d1d559cd91eafb9a02510d2f56773af076fdbf5196168ed8522

SHA512
e3b93bd750db1cef9c2ca214ca79381539b415da661b8dd0f0a972b2b2f894093a310da7cb5db3c917dd5d94cac8a0e6de40608cb37b1c0e70a85c205c7651f6

Download Submit
memory/2152-66-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2152-71-0x0000000003F80000-0x000000000439D000-memory.dmp

Filesize
4.1MB

Download
memory/2152-11-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/2152-56-0x0000000003F80000-0x000000000439D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-96-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-80-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-114-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-63-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-111-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-107-0x00000000025D0000-0x0000000002672000-memory.dmp

Filesize
648KB

Download
memory/2788-67-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-70-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-106-0x00000000025D0000-0x0000000002672000-memory.dmp

Filesize
648KB

Download
memory/2788-74-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-77-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-105-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-83-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-84-0x00000000025D0000-0x0000000002672000-memory.dmp

Filesize
648KB

Download
memory/2788-90-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-93-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-102-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2788-99-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2980-58-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2980-57-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/2980-61-0x0000000000400000-0x000000000081D000-memory.dmp

Filesize
4.1MB

Download
memory/3016-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3016-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3016-65-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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