formbook | ee66a185008549b9ca0c687a78aa6a69e4770dd12cab9dc63d5346c1f570904b

Resubmissions

12/03/2025, 21:32

250312-1dmynatxey 10

11/03/2025, 16:10

250311-tmgdxaxnx4 10

06/03/2025, 02:30

250306-cze8yav1az 10

Analysis

max time kernel
900s
max time network
890s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
11/03/2025, 16:10

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Report Analysis Logs

General

Target

4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe
Size

436KB
MD5

9284392fd96b31b3de8d8f664de3f0e4
SHA1

9b2e8d834a7e50ec7e674433d019dbd19996036c
SHA256

4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7
SHA512

61efcc329ba8f50c32de43ba0bfc66e6591158c12fcb095dfa3652e54fc799255a49e44c62f2022b807d51b432050f85d94a172dc0e186af40a21e3848c7c922
SSDEEP

6144:qrX0zvg3rjIxvuJMQzp5dVw4JAUvxWgFdgqwixiak3IfMRfkHYgV:iEDg33IpqU4JA61dgq2G74

Score

10^/10

formbook o4ms discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

o4ms

Decoy

fishingboatpub.com

trebor72.com

qualitycleanaustralia.com

amphilykenyx.com

jayte90.net

alveegrace.com

le-fleursoleil.com

volumoffer.com

businessbookwriters.com

alpin-art.com

firsttastetogo.com

catofc.com

ref-290.com

sbo2008.com

fortlauderdaleelevators.com

shanghaiyalian.com

majestybags.com

afcerd.com

myceliated.com

ls0a.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral9/memory/2784-7-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\9RO4KZIXE8V = "C:\\Users\\Admin\\AppData\\Roaming\\browse\\browse.exe"	control.exe
Key created	\Registry\User\S-1-5-21-1163522206-1469769407-485553996-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	control.exe

Executes dropped EXE 2 IoCs

pid	Process
2080	browse.exe
2652	browse.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2040 set thread context of 2784	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	32
PID 2080 set thread context of 2652	2080	browse.exe	40
PID 2652 set thread context of 1196	2652	browse.exe	21
PID 1872 set thread context of 1196	1872	control.exe	21

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	control.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	browse.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1163522206-1469769407-485553996-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	control.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2760	schtasks.exe
1416	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2784	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe
2652	browse.exe
2652	browse.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2652	browse.exe
2652	browse.exe
2652	browse.exe
1872	control.exe
1872	control.exe
1872	control.exe
1872	control.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe
Token: SeDebugPrivilege	2080	browse.exe
Token: SeDebugPrivilege	2652	browse.exe
Token: SeDebugPrivilege	1872	control.exe
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE
Token: SeShutdownPrivilege	1196	Explorer.EXE

Suspicious use of WriteProcessMemory 51 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2784	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	32
PID 2040 wrote to memory of 2784	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	32
PID 2040 wrote to memory of 2784	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	32
PID 2040 wrote to memory of 2784	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	32
PID 2040 wrote to memory of 2784	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	32
PID 2040 wrote to memory of 2784	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	32
PID 2040 wrote to memory of 2784	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	32
PID 2040 wrote to memory of 3056	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	33
PID 2040 wrote to memory of 3056	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	33
PID 2040 wrote to memory of 3056	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	33
PID 2040 wrote to memory of 3056	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	33
PID 2040 wrote to memory of 3032	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	34
PID 2040 wrote to memory of 3032	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	34
PID 2040 wrote to memory of 3032	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	34
PID 2040 wrote to memory of 3032	2040	4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe	34
PID 3056 wrote to memory of 2760	3056	cmd.exe	37
PID 3056 wrote to memory of 2760	3056	cmd.exe	37
PID 3056 wrote to memory of 2760	3056	cmd.exe	37
PID 3056 wrote to memory of 2760	3056	cmd.exe	37
PID 2524 wrote to memory of 2080	2524	taskeng.exe	39
PID 2524 wrote to memory of 2080	2524	taskeng.exe	39
PID 2524 wrote to memory of 2080	2524	taskeng.exe	39
PID 2524 wrote to memory of 2080	2524	taskeng.exe	39
PID 2080 wrote to memory of 2652	2080	browse.exe	40
PID 2080 wrote to memory of 2652	2080	browse.exe	40
PID 2080 wrote to memory of 2652	2080	browse.exe	40
PID 2080 wrote to memory of 2652	2080	browse.exe	40
PID 2080 wrote to memory of 2652	2080	browse.exe	40
PID 2080 wrote to memory of 2652	2080	browse.exe	40
PID 2080 wrote to memory of 2652	2080	browse.exe	40
PID 1196 wrote to memory of 1872	1196	Explorer.EXE	41
PID 1196 wrote to memory of 1872	1196	Explorer.EXE	41
PID 1196 wrote to memory of 1872	1196	Explorer.EXE	41
PID 1196 wrote to memory of 1872	1196	Explorer.EXE	41
PID 1872 wrote to memory of 1000	1872	control.exe	42
PID 1872 wrote to memory of 1000	1872	control.exe	42
PID 1872 wrote to memory of 1000	1872	control.exe	42
PID 1872 wrote to memory of 1000	1872	control.exe	42
PID 1872 wrote to memory of 1000	1872	control.exe	42
PID 2080 wrote to memory of 2440	2080	browse.exe	43
PID 2080 wrote to memory of 2440	2080	browse.exe	43
PID 2080 wrote to memory of 2440	2080	browse.exe	43
PID 2080 wrote to memory of 2440	2080	browse.exe	43
PID 2080 wrote to memory of 2644	2080	browse.exe	44
PID 2080 wrote to memory of 2644	2080	browse.exe	44
PID 2080 wrote to memory of 2644	2080	browse.exe	44
PID 2080 wrote to memory of 2644	2080	browse.exe	44
PID 2440 wrote to memory of 1416	2440	cmd.exe	47
PID 2440 wrote to memory of 1416	2440	cmd.exe	47
PID 2440 wrote to memory of 1416	2440	cmd.exe	47
PID 2440 wrote to memory of 1416	2440	cmd.exe	47

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe
  "C:\Users\Admin\AppData\Local\Temp\4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2040
- - C:\Users\Admin\AppData\Local\Temp\4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe
    "C:\Users\Admin\AppData\Local\Temp\4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:2784
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\browse\browse.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:3056
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\browse\browse.exe'" /f
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:2760
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Local\Temp\4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7.exe" "C:\Users\Admin\AppData\Roaming\browse\browse.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3032
- C:\Windows\SysWOW64\control.exe
  "C:\Windows\SysWOW64\control.exe"
  2⤵
  - Adds policy Run key to start application
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1872
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1000

C:\Windows\system32\taskeng.exe
taskeng.exe {9185EC8D-23B1-41DA-A78D-AC61010D7E11} S-1-5-21-1163522206-1469769407-485553996-1000:PJCSDMRP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2524
- C:\Users\Admin\AppData\Roaming\browse\browse.exe
  C:\Users\Admin\AppData\Roaming\browse\browse.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2080
- - C:\Users\Admin\AppData\Roaming\browse\browse.exe
    "C:\Users\Admin\AppData\Roaming\browse\browse.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2652
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\browse\browse.exe'" /f
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2440
  - - C:\Windows\SysWOW64\schtasks.exe
      schtasks /create /sc minute /mo 1 /tn "Nano" /tr "'C:\Users\Admin\AppData\Roaming\browse\browse.exe'" /f
      4⤵
      System Location Discovery: System Language Discovery
      Scheduled Task/Job: Scheduled Task
      PID:1416
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c copy "C:\Users\Admin\AppData\Roaming\browse\browse.exe" "C:\Users\Admin\AppData\Roaming\browse\browse.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2644

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\KP089D-1\KP0logim.jpeg

Filesize
70KB

MD5
92fdeeeea15ae5738475077f6862d349

SHA1
29cab9bcb53bac777870fa81f307ef2010e345fd

SHA256
c60a8be46fc27f2af200427bc52d4e53fe346de80222a45777178e7a568b56ca

SHA512
1bda9a55be2c7076308561fa8144f1cc5f809fc44b2a0f0cb194db3f42b98a6e1dd6979b921154ef992ff8c03a1da54a2fce36243490b028f60409a346886d9a

Download Submit
C:\Users\Admin\AppData\Roaming\KP089D-1\KP0logrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\KP089D-1\KP0logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\KP089D-1\KP0logrv.ini

Filesize
40B

MD5
ba3b6bc807d4f76794c4b81b09bb9ba5

SHA1
24cb89501f0212ff3095ecc0aba97dd563718fb1

SHA256
6eebf968962745b2e9de2ca969af7c424916d4e3fe3cc0bb9b3d414abfce9507

SHA512
ecd07e601fc9e3cfc39addd7bd6f3d7f7ff3253afb40bf536e9eaac5a4c243e5ec40fbfd7b216cb0ea29f2517419601e335e33ba19dea4a46f65e38694d465bf

Download Submit
C:\Users\Admin\AppData\Roaming\browse\browse.exe

Filesize
436KB

MD5
9284392fd96b31b3de8d8f664de3f0e4

SHA1
9b2e8d834a7e50ec7e674433d019dbd19996036c

SHA256
4f8799e5441c553ebbda342b6b06356a70dc432e5ac0434f4158146520b57ab7

SHA512
61efcc329ba8f50c32de43ba0bfc66e6591158c12fcb095dfa3652e54fc799255a49e44c62f2022b807d51b432050f85d94a172dc0e186af40a21e3848c7c922

Download Submit
memory/1196-40-0x0000000004B50000-0x0000000004BF5000-memory.dmp

Filesize
660KB

Download
memory/1872-25-0x0000000000030000-0x000000000004F000-memory.dmp

Filesize
124KB

Download
memory/2040-2-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2040-0-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/2040-1-0x0000000001040000-0x00000000010B2000-memory.dmp

Filesize
456KB

Download
memory/2040-9-0x000000007411E000-0x000000007411F000-memory.dmp

Filesize
4KB

Download
memory/2040-10-0x0000000074110000-0x00000000747FE000-memory.dmp

Filesize
6.9MB

Download
memory/2080-16-0x0000000000CB0000-0x0000000000D22000-memory.dmp

Filesize
456KB

Download
memory/2652-21-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2784-11-0x0000000000890000-0x0000000000B93000-memory.dmp

Filesize
3.0MB

Download
memory/2784-8-0x0000000000890000-0x0000000000B93000-memory.dmp

Filesize
3.0MB

Download
memory/2784-7-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2784-5-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2784-3-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download