e01d9c12ce59def16d3aa593e461d13173b98d4cef9658834f756ff4edbfd3d7

Analysis

max time kernel
51s
max time network
109s
platform
windows7_x64
resource
win7v20201028
submitted
13/03/2021, 07:29

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General

Target
d171704501b00985c038ef6343b27f50.exe
Size 978KB
Sample210313-az9sa2cp32
SHA256 e01d9c12ce59def16d3aa593e461d13173b98d4cef9658834f756ff4edbfd3d7
MD5 d171704501b00985c038ef6343b27f50
SHA1 bdd5de4b7baa4632ce2a01fc850df1fa13ed8467
SHA512 de67037a3b5cd2fa86ec5bdc6b431becd26f0a07c1b40657086f6ab2a8598a6b07cbfa39840c3d0f3676d71534d73039203839ceb532856dfa71b921eb0f8492
MD5 SHA1 SHA512

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
1352	Essa.com
1092	Essa.com

Loads dropped DLL 1 IoCs

pid	Process
856	cmd.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
6	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	Essa.com
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	Essa.com

Modifies system certificate store 2 TTPs 2 IoCs

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13	Essa.com
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\DAC9024F54D8F6DF94935FB1732638CA6AD77C13\Blob = 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	Essa.com

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
1552	PING.EXE

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 1656 wrote to memory of 1264	1656	d171704501b00985c038ef6343b27f50.exe	26
PID 1656 wrote to memory of 1264	1656	d171704501b00985c038ef6343b27f50.exe	26
PID 1656 wrote to memory of 1264	1656	d171704501b00985c038ef6343b27f50.exe	26
PID 1656 wrote to memory of 1264	1656	d171704501b00985c038ef6343b27f50.exe	26
PID 1656 wrote to memory of 652	1656	d171704501b00985c038ef6343b27f50.exe	28
PID 1656 wrote to memory of 652	1656	d171704501b00985c038ef6343b27f50.exe	28
PID 1656 wrote to memory of 652	1656	d171704501b00985c038ef6343b27f50.exe	28
PID 1656 wrote to memory of 652	1656	d171704501b00985c038ef6343b27f50.exe	28
PID 652 wrote to memory of 856	652	cmd.exe	30
PID 652 wrote to memory of 856	652	cmd.exe	30
PID 652 wrote to memory of 856	652	cmd.exe	30
PID 652 wrote to memory of 856	652	cmd.exe	30
PID 856 wrote to memory of 1528	856	cmd.exe	34
PID 856 wrote to memory of 1528	856	cmd.exe	34
PID 856 wrote to memory of 1528	856	cmd.exe	34
PID 856 wrote to memory of 1528	856	cmd.exe	34
PID 856 wrote to memory of 1352	856	cmd.exe	35
PID 856 wrote to memory of 1352	856	cmd.exe	35
PID 856 wrote to memory of 1352	856	cmd.exe	35
PID 856 wrote to memory of 1352	856	cmd.exe	35
PID 856 wrote to memory of 1552	856	cmd.exe	36
PID 856 wrote to memory of 1552	856	cmd.exe	36
PID 856 wrote to memory of 1552	856	cmd.exe	36
PID 856 wrote to memory of 1552	856	cmd.exe	36
PID 1352 wrote to memory of 1092	1352	Essa.com	37
PID 1352 wrote to memory of 1092	1352	Essa.com	37
PID 1352 wrote to memory of 1092	1352	Essa.com	37
PID 1352 wrote to memory of 1092	1352	Essa.com	37

C:\Users\Admin\AppData\Local\Temp\d171704501b00985c038ef6343b27f50.exe
"C:\Users\Admin\AppData\Local\Temp\d171704501b00985c038ef6343b27f50.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c echo iVNx
  2⤵
  PID:1264
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c C:\Windows\system32\cmd.exe < Puerile.ini
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:652
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe
    3⤵
    - Loads dropped DLL
    - Suspicious use of WriteProcessMemory
    PID:856
  - - C:\Windows\SysWOW64\findstr.exe
      findstr /V /R "^DlxfciNLvjxgeSkjwcdpocskkaMguGqmyzQnrjwhmlDwsWGEBHpUTJPoTorrxnEQkUpJeNpOxeJYSfTfMoNnbyFcDIFVpXTwFMQbMXCOnxAQqRfDgNdjKuaygNyxigFvpHzymvCOGZqeFPcMzw$" Dov.xlam
      4⤵
      PID:1528
  - - C:\Users\Admin\AppData\Roaming\cjSjHgEAWjdn\Essa.com
      Essa.com Sul.wmv
      4⤵
      Executes dropped EXE
      Suspicious use of WriteProcessMemory
      PID:1352
    - - C:\Users\Admin\AppData\Roaming\cjSjHgEAWjdn\Essa.com
        
        C:\Users\Admin\AppData\Roaming\cjSjHgEAWjdn\Essa.com Sul.wmv
        5⤵
        Executes dropped EXE
        Checks processor information in registry
        Modifies system certificate store
        
        PID:1092
  - - C:\Windows\SysWOW64\PING.EXE
      ping 127.0.0.1 -n 30
      4⤵
      Runs ping.exe
      PID:1552

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

T1130

Modify Registry

T1112

Web Service

T1102

Credential Access

Discovery

Query Registry

T1012

Remote System Discovery

T1018

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

memory/848-20-0x000007FEF7BD0000-0x000007FEF7E4A000-memory.dmp

Download

memory/1092-19-0x0000000000240000-0x0000000000241000-memory.dmp

Download

memory/1656-2-0x00000000765A1000-0x00000000765A3000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads