ad5fc45f2dd58b5209749b5b5f7aaac5b3413cea80eb200727fa1fd919bb8cf6

Analysis

max time kernel
50s
max time network
47s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
16/06/2023, 01:24

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General

Target
file.exe
Size 449KB
Sample230616-bsdabscc43
SHA256 ad5fc45f2dd58b5209749b5b5f7aaac5b3413cea80eb200727fa1fd919bb8cf6
MD5 6c7eb9815cd703da377669b0ce8b296e
SHA1 346355d5e82b5fc0d98e7473b669e38a60d21650
SHA512 f778534ee852912125da09c92307492e565453f90cd1a9ae40c399dd19072f15d129f2e4c13db611348f4cf02534652da7be3994866c5ec1a4f00a55dc3f6946
SSDEEP 6144:96k5WC6JSxgZCHH+tIvZ73uPoZWqw3ebxI/h66swJDRUmiMUmLfkUoH:96uWCisH+tIJ2oBwMS/5JDaWUmL0
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

collection

Malware Config

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 1188 created 1256	1188	file.exe	13

Deletes itself 1 IoCs

pid	Process
1660	certreq.exe

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	certreq.exe

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	certreq.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	certreq.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1188	file.exe
1188	file.exe
1188	file.exe
1188	file.exe
1660	certreq.exe
1660	certreq.exe
1660	certreq.exe
1660	certreq.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1188 wrote to memory of 1660	1188	file.exe	27
PID 1188 wrote to memory of 1660	1188	file.exe	27
PID 1188 wrote to memory of 1660	1188	file.exe	27
PID 1188 wrote to memory of 1660	1188	file.exe	27
PID 1188 wrote to memory of 1660	1188	file.exe	27
PID 1188 wrote to memory of 1660	1188	file.exe	27

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	certreq.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1914912747-3343861975-731272777-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	certreq.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1256
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1188
- C:\Windows\system32\certreq.exe
  "C:\Windows\system32\certreq.exe"
  2⤵
  - Deletes itself
  - Accesses Microsoft Outlook profiles
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - outlook_office_path
  - outlook_win_path
  PID:1660

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1188-69-0x0000000000400000-0x00000000004E7000-memory.dmp

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memory/1188-56-0x0000000000230000-0x0000000000237000-memory.dmp

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memory/1188-57-0x0000000001F30000-0x0000000002330000-memory.dmp

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memory/1188-58-0x0000000001F30000-0x0000000002330000-memory.dmp

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memory/1188-59-0x0000000000400000-0x00000000004E7000-memory.dmp

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memory/1188-55-0x0000000000340000-0x00000000003B1000-memory.dmp

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memory/1188-61-0x0000000000530000-0x0000000000566000-memory.dmp

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memory/1188-67-0x0000000000530000-0x0000000000566000-memory.dmp

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memory/1660-71-0x00000000001A0000-0x00000000001A7000-memory.dmp

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memory/1660-76-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

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memory/1660-60-0x0000000000060000-0x0000000000063000-memory.dmp

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memory/1660-73-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

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memory/1660-72-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

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memory/1660-74-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

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memory/1660-75-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

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memory/1660-70-0x0000000000060000-0x0000000000063000-memory.dmp

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memory/1660-78-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

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memory/1660-79-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

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memory/1660-80-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

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memory/1660-81-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

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memory/1660-82-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

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memory/1660-83-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

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