73ee737e5bb4e53ce37177cf1ee0155ba04475523ddc7f8bd35754d5e3d162aa

General

Target

04254099.exe
Size

510KB
MD5

e5e21de748302d8284cf59bd050d4945
SHA1

56ca6ab52b877a1752f23cbb47b342e7b6882653
SHA256

73ee737e5bb4e53ce37177cf1ee0155ba04475523ddc7f8bd35754d5e3d162aa
SHA512

aaae0f5c521837814578ec1509e7bf9f597bcd6b693de9a3731f22ab5e5e16f35d6a458c4c2ee79dcd5708ae00e192a1f22e3cbe6d70d9c0544eb729a1374269
SSDEEP

6144:2PNP5bKdBTYQVWtRvckecX5vZMBNKRqOSnyDOk8liUnHrfkYF2RguzxQQ3nKala:QNQdB3VCbecX706ok8vfnGhxn3nKQ

Score

10^/10

collection

Malware Config

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 1160 created 1236	1160	04254099.exe	15

Deletes itself 1 IoCs

pid	Process
1212	certreq.exe

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\16.0\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
1160	04254099.exe
1160	04254099.exe
1160	04254099.exe
1160	04254099.exe
1212	certreq.exe
1212	certreq.exe
1212	certreq.exe
1212	certreq.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1160 wrote to memory of 1212	1160	04254099.exe	28
PID 1160 wrote to memory of 1212	1160	04254099.exe	28
PID 1160 wrote to memory of 1212	1160	04254099.exe	28
PID 1160 wrote to memory of 1212	1160	04254099.exe	28
PID 1160 wrote to memory of 1212	1160	04254099.exe	28
PID 1160 wrote to memory of 1212	1160	04254099.exe	28

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	certreq.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-1283023626-844874658-3193756055-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	certreq.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1236
- C:\Users\Admin\AppData\Local\Temp\04254099.exe
  "C:\Users\Admin\AppData\Local\Temp\04254099.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1160
- 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:1212

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/1160-69-0x0000000000400000-0x0000000002D27000-memory.dmp

Filesize
41.2MB

Download
memory/1160-56-0x00000000002A0000-0x00000000002A7000-memory.dmp

Filesize
28KB

Download
memory/1160-57-0x00000000049B0000-0x0000000004DB0000-memory.dmp

Filesize
4.0MB

Download
memory/1160-58-0x00000000049B0000-0x0000000004DB0000-memory.dmp

Filesize
4.0MB

Download
memory/1160-59-0x0000000000400000-0x0000000002D27000-memory.dmp

Filesize
41.2MB

Download
memory/1160-55-0x0000000000220000-0x0000000000290000-memory.dmp

Filesize
448KB

Download
memory/1160-61-0x0000000004940000-0x0000000004976000-memory.dmp

Filesize
216KB

Download
memory/1160-67-0x0000000004940000-0x0000000004976000-memory.dmp

Filesize
216KB

Download
memory/1212-71-0x00000000002A0000-0x00000000002A7000-memory.dmp

Filesize
28KB

Download
memory/1212-76-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1212-60-0x0000000000060000-0x0000000000063000-memory.dmp

Filesize
12KB

Download
memory/1212-72-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1212-73-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1212-74-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1212-75-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1212-70-0x0000000000060000-0x0000000000063000-memory.dmp

Filesize
12KB

Download
memory/1212-78-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1212-79-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1212-80-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1212-81-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1212-82-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1212-83-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download

Analysis

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