b031623b875d6a39a92325a6299b4117488de2c05847cafc7c81f99880527df4

General

Target

1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe
Size

457KB
MD5

80674d319f748542d1d98c177453d160
SHA1

20060155c58e2168efadb7defd268a6150f0243c
SHA256

1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488
SHA512

ac834182de52ee7faf11e9fa3e5075c85934b23335b55d622d1bc1103360602b49288ac6c9741cd47ac7fe4b464217054191433a47c438288695329f66fcb480
SSDEEP

6144:stfVNkIi0H6rWfMmkri/E8VzlR4AqTGFkl2YuyA/GjTxoLraz4HCkj:shVNkIi9kM9cE0RfOGFkl2YNWrq4H5

Score

10^/10

collection

Malware Config

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 1236 created 1204	1236	1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe	17

Deletes itself 1 IoCs

pid	Process
520	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\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
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

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
1236	1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe
1236	1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe
1236	1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe
1236	1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe
520	certreq.exe
520	certreq.exe
520	certreq.exe
520	certreq.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1236 wrote to memory of 520	1236	1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe	27
PID 1236 wrote to memory of 520	1236	1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe	27
PID 1236 wrote to memory of 520	1236	1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe	27
PID 1236 wrote to memory of 520	1236	1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe	27
PID 1236 wrote to memory of 520	1236	1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe	27
PID 1236 wrote to memory of 520	1236	1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.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:1204
- C:\Users\Admin\AppData\Local\Temp\1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe
  "C:\Users\Admin\AppData\Local\Temp\1b306f9a2c87c8ab411564465e3213533585d259654a4435c781a3a8fbb08488.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1236
- 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:520

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/520-71-0x0000000000120000-0x0000000000127000-memory.dmp

Filesize
28KB

Download
memory/520-78-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/520-83-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/520-82-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/520-81-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/520-60-0x0000000000060000-0x0000000000063000-memory.dmp

Filesize
12KB

Download
memory/520-80-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/520-79-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/520-76-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/520-74-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/520-72-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/520-73-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/520-70-0x0000000000060000-0x0000000000063000-memory.dmp

Filesize
12KB

Download
memory/520-75-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1236-56-0x00000000003C0000-0x00000000003C7000-memory.dmp

Filesize
28KB

Download
memory/1236-69-0x0000000000400000-0x00000000006F4000-memory.dmp

Filesize
3.0MB

Download
memory/1236-55-0x0000000000700000-0x0000000000770000-memory.dmp

Filesize
448KB

Download
memory/1236-67-0x0000000002080000-0x00000000020B6000-memory.dmp

Filesize
216KB

Download
memory/1236-61-0x0000000002080000-0x00000000020B6000-memory.dmp

Filesize
216KB

Download
memory/1236-59-0x0000000000400000-0x00000000006F4000-memory.dmp

Filesize
3.0MB

Download
memory/1236-58-0x0000000002100000-0x0000000002500000-memory.dmp

Filesize
4.0MB

Download
memory/1236-57-0x0000000002100000-0x0000000002500000-memory.dmp

Filesize
4.0MB

Download

Analysis

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