f3e316f6fd4ae963b581ccbd173334387fc4700cd7f4bc09e664c94c1df228c8

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
20/12/2023, 10:26

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General

Target

Payment Advise 201223 pdf.exe
Size

951KB
MD5

43e62f55ca87bca9958904980c6a739e
SHA1

8049cf6db6349ce872022bf7c25ecc392946fc65
SHA256

860a1dfc03c5420e2fc343a66434075b286deb3ecb03134486d24c18ef60687d
SHA512

62471d5d804a8a807d69e0db7b298ae785d7036e165ba6e0d09d50fce6aa7719e36d1f81c3f139a254c7e4dc55e2b36b5ba6e0c38b380be586ad646b59adda97
SSDEEP

12288:LyXbgBFhPQN39BnbG5WKb6M8rePfIs7ReZei:KgBFyJfnq5WKb6M8reoIReZ9

Score

5^/10

Malware Config

Signatures

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 412 set thread context of 3888	412	Payment Advise 201223 pdf.exe	95
PID 3888 set thread context of 3408	3888	Payment Advise 201223 pdf.exe	57
PID 3888 set thread context of 1428	3888	Payment Advise 201223 pdf.exe	99
PID 1428 set thread context of 3408	1428	mcbuilder.exe	57

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	mcbuilder.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
412	Payment Advise 201223 pdf.exe
412	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
3888	Payment Advise 201223 pdf.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3888	Payment Advise 201223 pdf.exe
3408	Explorer.EXE
3408	Explorer.EXE
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe
1428	mcbuilder.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	412	Payment Advise 201223 pdf.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3408	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 412 wrote to memory of 3888	412	Payment Advise 201223 pdf.exe	95
PID 412 wrote to memory of 3888	412	Payment Advise 201223 pdf.exe	95
PID 412 wrote to memory of 3888	412	Payment Advise 201223 pdf.exe	95
PID 412 wrote to memory of 3888	412	Payment Advise 201223 pdf.exe	95
PID 412 wrote to memory of 3888	412	Payment Advise 201223 pdf.exe	95
PID 412 wrote to memory of 3888	412	Payment Advise 201223 pdf.exe	95
PID 3408 wrote to memory of 1428	3408	Explorer.EXE	99
PID 3408 wrote to memory of 1428	3408	Explorer.EXE	99
PID 3408 wrote to memory of 1428	3408	Explorer.EXE	99
PID 1428 wrote to memory of 4368	1428	mcbuilder.exe	100
PID 1428 wrote to memory of 4368	1428	mcbuilder.exe	100
PID 1428 wrote to memory of 4368	1428	mcbuilder.exe	100

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3408
- C:\Users\Admin\AppData\Local\Temp\Payment Advise 201223 pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Payment Advise 201223 pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:412
- - C:\Users\Admin\AppData\Local\Temp\Payment Advise 201223 pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Payment Advise 201223 pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:3888
- C:\Windows\SysWOW64\mcbuilder.exe
  "C:\Windows\SysWOW64\mcbuilder.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:1428
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4368

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/412-10-0x0000000006E40000-0x0000000006EBE000-memory.dmp

Filesize
504KB

Download
memory/412-8-0x0000000005B90000-0x0000000005B98000-memory.dmp

Filesize
32KB

Download
memory/412-2-0x0000000005EB0000-0x0000000006454000-memory.dmp

Filesize
5.6MB

Download
memory/412-3-0x0000000005900000-0x0000000005992000-memory.dmp

Filesize
584KB

Download
memory/412-4-0x0000000005860000-0x0000000005870000-memory.dmp

Filesize
64KB

Download
memory/412-6-0x0000000005BA0000-0x0000000005C3C000-memory.dmp

Filesize
624KB

Download
memory/412-5-0x00000000058B0000-0x00000000058BA000-memory.dmp

Filesize
40KB

Download
memory/412-13-0x0000000074F30000-0x00000000756E0000-memory.dmp

Filesize
7.7MB

Download
memory/412-0-0x0000000000DB0000-0x0000000000EA4000-memory.dmp

Filesize
976KB

Download
memory/412-9-0x0000000005D60000-0x0000000005D6A000-memory.dmp

Filesize
40KB

Download
memory/412-1-0x0000000074F30000-0x00000000756E0000-memory.dmp

Filesize
7.7MB

Download
memory/412-7-0x0000000005D40000-0x0000000005D58000-memory.dmp

Filesize
96KB

Download
memory/1428-24-0x0000000000390000-0x00000000003CA000-memory.dmp

Filesize
232KB

Download
memory/1428-27-0x0000000000390000-0x00000000003CA000-memory.dmp

Filesize
232KB

Download
memory/1428-20-0x0000000000390000-0x00000000003CA000-memory.dmp

Filesize
232KB

Download
memory/1428-21-0x0000000000390000-0x00000000003CA000-memory.dmp

Filesize
232KB

Download
memory/1428-25-0x0000000000C80000-0x0000000000D1A000-memory.dmp

Filesize
616KB

Download
memory/1428-23-0x0000000000E40000-0x000000000118A000-memory.dmp

Filesize
3.3MB

Download
memory/3408-29-0x0000000002C50000-0x0000000002D0E000-memory.dmp

Filesize
760KB

Download
memory/3408-36-0x0000000002C50000-0x0000000002D0E000-memory.dmp

Filesize
760KB

Download
memory/3408-28-0x0000000002C50000-0x0000000002D0E000-memory.dmp

Filesize
760KB

Download
memory/3408-26-0x000000000C930000-0x000000000D352000-memory.dmp

Filesize
10.1MB

Download
memory/3408-19-0x000000000C930000-0x000000000D352000-memory.dmp

Filesize
10.1MB

Download
memory/3888-15-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/3888-22-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/3888-17-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/3888-18-0x0000000001310000-0x000000000132B000-memory.dmp

Filesize
108KB

Download
memory/3888-16-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download
memory/3888-14-0x0000000001330000-0x000000000167A000-memory.dmp

Filesize
3.3MB

Download
memory/3888-11-0x0000000000400000-0x000000000043E000-memory.dmp

Filesize
248KB

Download