formbook | 8ea404b56d3341cbcc42c2f9b99c6cf8aa457d94b5319e19bee72859be9b1c32

General

Target

IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe
Size

504KB
MD5

c1b13db471da675d9887133f6de51d4d
SHA1

ee4185e2232581c17e45b5598a07a99f49887364
SHA256

8ea404b56d3341cbcc42c2f9b99c6cf8aa457d94b5319e19bee72859be9b1c32
SHA512

40076fb9f71a1c96be4883cc595a7cbee3da9701ad2633d20a31d125a19382ad14b43de18ff17eac96d211e2885137d61ee34065739c6b5967592a91c8050a65

Score

10^/10

trojan spyware stealer formbook persistence

Malware Config

Signatures

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1864	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe
Token: SeDebugPrivilege	1844	msdt.exe

Adds Run entry to policy start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	msdt.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\JPWDVZIX_JQ = "C:\\Program Files (x86)\\Uerddkzi\\mfchtmx.exe"	msdt.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE
1200	Explorer.EXE

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1492 set thread context of 1864	1492	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe	26
PID 1864 set thread context of 1200	1864	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe	20
PID 1844 set thread context of 1200	1844	msdt.exe	20

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1864	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe
1864	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1864	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe
1864	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe
1864	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe
1844	msdt.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-910373003-3952921535-3480519689-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msdt.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 1492 wrote to memory of 1864	1492	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe	26
PID 1492 wrote to memory of 1864	1492	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe	26
PID 1492 wrote to memory of 1864	1492	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe	26
PID 1492 wrote to memory of 1864	1492	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe	26
PID 1492 wrote to memory of 1864	1492	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe	26
PID 1492 wrote to memory of 1864	1492	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe	26
PID 1492 wrote to memory of 1864	1492	IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe	26
PID 1200 wrote to memory of 1844	1200	Explorer.EXE	27
PID 1200 wrote to memory of 1844	1200	Explorer.EXE	27
PID 1200 wrote to memory of 1844	1200	Explorer.EXE	27
PID 1200 wrote to memory of 1844	1200	Explorer.EXE	27
PID 1844 wrote to memory of 1824	1844	msdt.exe	28
PID 1844 wrote to memory of 1824	1844	msdt.exe	28
PID 1844 wrote to memory of 1824	1844	msdt.exe	28
PID 1844 wrote to memory of 1824	1844	msdt.exe	28
PID 1844 wrote to memory of 1652	1844	msdt.exe	31
PID 1844 wrote to memory of 1652	1844	msdt.exe	31
PID 1844 wrote to memory of 1652	1844	msdt.exe	31
PID 1844 wrote to memory of 1652	1844	msdt.exe	31
PID 1844 wrote to memory of 1652	1844	msdt.exe	31

Deletes itself 1 IoCs

pid	Process
1824	cmd.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware

Data from Local System
T1005

Credentials in Files
T1081

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Uerddkzi\mfchtmx.exe	msdt.exe

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	msdt.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe
  "C:\Users\Admin\AppData\Local\Temp\IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1492
- - C:\Users\Admin\AppData\Local\Temp\IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe
    "{path}"
    3⤵
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    PID:1864
- C:\Windows\SysWOW64\msdt.exe
  "C:\Windows\SysWOW64\msdt.exe"
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  - Adds Run entry to policy start application
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Modifies Internet Explorer settings
  - Suspicious use of WriteProcessMemory
  - Drops file in Program Files directory
  - System policy modification
  PID:1844
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\IMAGES-001-QUOTE REQUEST #21800176_354667485903 _09_07_2020PDF.exe"
    3⤵
    - Deletes itself
    PID:1824
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1652

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1652-18-0x000000013F710000-0x000000013F7A3000-memory.dmp

Filesize
588KB

Download
memory/1844-7-0x0000000002010000-0x00000000020B8000-memory.dmp

Filesize
672KB

Download
memory/1844-16-0x0000000003520000-0x00000000035DE000-memory.dmp

Filesize
760KB

Download
memory/1844-5-0x0000000000530000-0x0000000000624000-memory.dmp

Filesize
976KB

Download
memory/1864-2-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads