c99798d67cbf1e80040257eb9e68f62d966fe53443ca54e120e3a0379152ca80

General

Target

file.exe
Size

508KB
MD5

32262481df1855d46c85453fc1ce3894
SHA1

ac238a2d4d1b767eeef4bc11211935158ea04916
SHA256

c99798d67cbf1e80040257eb9e68f62d966fe53443ca54e120e3a0379152ca80
SHA512

4dce7c2b72aae70c0af87d0dfca6ffac19dcc11a75f393074353e59781331f3f6f1f4090eec4cb831a38df260eb625c1f46eaaf9ca6cb0bef91876a01afa86bf
SSDEEP

6144:ZcIh5dHEeTfxgErpyLU2e+oCLCy3a2zmeF2PkhlknBY46kEB7909:ZcfeTJgGmU5C+yqkFph6nBYxD79I

Score

10^/10

collection

Malware Config

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 1604 created 1248	1604	file.exe	14

Deletes itself 1 IoCs

pid	Process
656	certreq.exe

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\10.0\Outlook\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
1604	file.exe
1604	file.exe
1604	file.exe
1604	file.exe
656	certreq.exe
656	certreq.exe
656	certreq.exe
656	certreq.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1604 wrote to memory of 656	1604	file.exe	29
PID 1604 wrote to memory of 656	1604	file.exe	29
PID 1604 wrote to memory of 656	1604	file.exe	29
PID 1604 wrote to memory of 656	1604	file.exe	29
PID 1604 wrote to memory of 656	1604	file.exe	29
PID 1604 wrote to memory of 656	1604	file.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	certreq.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	certreq.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1248
- 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:1604
- 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:656

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/656-74-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/656-75-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/656-82-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/656-81-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/656-80-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/656-79-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/656-60-0x0000000000060000-0x0000000000063000-memory.dmp

Filesize
12KB

Download
memory/656-72-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/656-70-0x0000000000120000-0x0000000000127000-memory.dmp

Filesize
28KB

Download
memory/656-78-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/656-77-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/656-69-0x0000000000060000-0x0000000000063000-memory.dmp

Filesize
12KB

Download
memory/656-73-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/656-71-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1604-61-0x0000000002450000-0x0000000002486000-memory.dmp

Filesize
216KB

Download
memory/1604-54-0x0000000000970000-0x00000000009B9000-memory.dmp

Filesize
292KB

Download
memory/1604-67-0x0000000002450000-0x0000000002486000-memory.dmp

Filesize
216KB

Download
memory/1604-55-0x0000000002120000-0x0000000002191000-memory.dmp

Filesize
452KB

Download
memory/1604-68-0x0000000000400000-0x0000000000964000-memory.dmp

Filesize
5.4MB

Download
memory/1604-59-0x0000000000400000-0x0000000000964000-memory.dmp

Filesize
5.4MB

Download
memory/1604-58-0x0000000002500000-0x0000000002900000-memory.dmp

Filesize
4.0MB

Download
memory/1604-57-0x0000000002500000-0x0000000002900000-memory.dmp

Filesize
4.0MB

Download
memory/1604-56-0x0000000000240000-0x0000000000247000-memory.dmp

Filesize
28KB

Download

Analysis

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