b99d0a2610e65b8ab1e10b959b15b25c07124b4f8761a71b99aa002affe6d6e4

General

Target

03731599.exe
Size

460KB
MD5

6df4109027cf0cdb396aa7e8cb00306e
SHA1

b677cc1b123fa8a5f81ad082b79f80b10d2a3efd
SHA256

b99d0a2610e65b8ab1e10b959b15b25c07124b4f8761a71b99aa002affe6d6e4
SHA512

c2a1547f4e8019308ea948283f56fb6d1faea62587c100c2e374361a74e380ee749c185ab4a4b3834fd611ae5b96a099955e8b2c827262d5870fc4e43c9ae280
SSDEEP

12288:+5SBXNJ5TKooCJPV7rZPDI/iz0hbtsODTJ:+5i0ozZJrpz0T

Score

10^/10

collection

Malware Config

Signatures

Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs

description	pid	Process	procid_target
PID 1148 created 1320	1148	03731599.exe	16

Deletes itself 1 IoCs

pid	Process
468	certreq.exe

Accesses Microsoft Outlook profiles 1 TTPs 6 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\10.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\11.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\12.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	certreq.exe
Key opened	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\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
1148	03731599.exe
1148	03731599.exe
1148	03731599.exe
1148	03731599.exe
468	certreq.exe
468	certreq.exe
468	certreq.exe
468	certreq.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1148 wrote to memory of 468	1148	03731599.exe	29
PID 1148 wrote to memory of 468	1148	03731599.exe	29
PID 1148 wrote to memory of 468	1148	03731599.exe	29
PID 1148 wrote to memory of 468	1148	03731599.exe	29
PID 1148 wrote to memory of 468	1148	03731599.exe	29
PID 1148 wrote to memory of 468	1148	03731599.exe	29

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook	certreq.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook	certreq.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1320
- C:\Users\Admin\AppData\Local\Temp\03731599.exe
  "C:\Users\Admin\AppData\Local\Temp\03731599.exe"
  2⤵
  - Suspicious use of NtCreateUserProcessOtherParentProcess
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1148
- 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:468

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/468-71-0x00000000001B0000-0x00000000001B7000-memory.dmp

Filesize
28KB

Download
memory/468-78-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/468-83-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/468-82-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/468-81-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/468-60-0x0000000000060000-0x0000000000063000-memory.dmp

Filesize
12KB

Download
memory/468-80-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/468-79-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/468-76-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/468-72-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/468-75-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/468-73-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/468-70-0x0000000000060000-0x0000000000063000-memory.dmp

Filesize
12KB

Download
memory/468-74-0x000007FFFFE80000-0x000007FFFFFAD000-memory.dmp

Filesize
1.2MB

Download
memory/1148-56-0x0000000000230000-0x0000000000237000-memory.dmp

Filesize
28KB

Download
memory/1148-69-0x0000000000400000-0x0000000002D1A000-memory.dmp

Filesize
41.1MB

Download
memory/1148-55-0x0000000000260000-0x00000000002D0000-memory.dmp

Filesize
448KB

Download
memory/1148-67-0x0000000002D60000-0x0000000002D96000-memory.dmp

Filesize
216KB

Download
memory/1148-61-0x0000000002D60000-0x0000000002D96000-memory.dmp

Filesize
216KB

Download
memory/1148-59-0x0000000000400000-0x0000000002D1A000-memory.dmp

Filesize
41.1MB

Download
memory/1148-58-0x00000000047E0000-0x0000000004BE0000-memory.dmp

Filesize
4.0MB

Download
memory/1148-57-0x00000000047E0000-0x0000000004BE0000-memory.dmp

Filesize
4.0MB

Download

Analysis

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