formbook | c4dd54b695dee5780cee6b00ad3ecf924fb1ef97d50abeafe37575de3ba571de

Analysis

max time kernel
150s
max time network
133s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
05/03/2023, 01:25

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General

Target

8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe
Size

1.1MB
MD5

6b0f9cfb69941d168fef11869e4c42b9
SHA1

54d5d783279109aca3abb09354aa99f02fc0994b
SHA256

8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6
SHA512

d0cfb2311ce78df30d8726964c8424c930a0a9302edc74dbe413d48fd21812ba747c9abcdb0a41940c7165806debac70483f3c1ed8dfacc4f99362a54ce261d1
SSDEEP

24576:j9dh2f8JfV2CeDzuPNy3k1aBH4fxQvy4:hdh2EJfB0zuPNykwt4JWy4

Score

10^/10

formbook md25 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

md25

Decoy

spicyappleshop.com

nearcut.africa

hairgrowrasa.com

jbo298.com

ibxs-key.com

agenrusia777.day

dimaxcf.com

onceuponatimedigital.com

datappg.online

graknip.online

ch-ac.ru

czubao.com

ercdocupdates.com

leveldhealth.com

sportsawards.rsvp

denvillemanagementinc.com

azwildchildco.com

2399130.com

ganhardinheironainternet.fun

barbelltoy.com

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/520-72-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/520-81-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1068-85-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook
behavioral1/memory/1068-87-0x0000000000090000-0x00000000000BF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 912 set thread context of 520	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	32
PID 520 set thread context of 1360	520	RegSvcs.exe	8
PID 1068 set thread context of 1360	1068	rundll32.exe	8

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
2040	schtasks.exe

Suspicious behavior: EnumeratesProcesses 24 IoCs

pid	Process
912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe
912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe
912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe
912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe
520	RegSvcs.exe
520	RegSvcs.exe
1764	powershell.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe
1068	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1360	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
520	RegSvcs.exe
520	RegSvcs.exe
520	RegSvcs.exe
1068	rundll32.exe
1068	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe
Token: SeDebugPrivilege	520	RegSvcs.exe
Token: SeDebugPrivilege	1764	powershell.exe
Token: SeDebugPrivilege	1068	rundll32.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1360	Explorer.EXE
1360	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1360	Explorer.EXE
1360	Explorer.EXE

Suspicious use of WriteProcessMemory 43 IoCs

description	pid	Process	procid_target
PID 912 wrote to memory of 1764	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	26
PID 912 wrote to memory of 1764	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	26
PID 912 wrote to memory of 1764	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	26
PID 912 wrote to memory of 1764	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	26
PID 912 wrote to memory of 2040	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	28
PID 912 wrote to memory of 2040	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	28
PID 912 wrote to memory of 2040	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	28
PID 912 wrote to memory of 2040	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	28
PID 912 wrote to memory of 780	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	30
PID 912 wrote to memory of 780	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	30
PID 912 wrote to memory of 780	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	30
PID 912 wrote to memory of 780	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	30
PID 912 wrote to memory of 780	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	30
PID 912 wrote to memory of 780	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	30
PID 912 wrote to memory of 780	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	30
PID 912 wrote to memory of 1116	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	31
PID 912 wrote to memory of 1116	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	31
PID 912 wrote to memory of 1116	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	31
PID 912 wrote to memory of 1116	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	31
PID 912 wrote to memory of 1116	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	31
PID 912 wrote to memory of 1116	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	31
PID 912 wrote to memory of 1116	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	31
PID 912 wrote to memory of 520	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	32
PID 912 wrote to memory of 520	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	32
PID 912 wrote to memory of 520	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	32
PID 912 wrote to memory of 520	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	32
PID 912 wrote to memory of 520	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	32
PID 912 wrote to memory of 520	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	32
PID 912 wrote to memory of 520	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	32
PID 912 wrote to memory of 520	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	32
PID 912 wrote to memory of 520	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	32
PID 912 wrote to memory of 520	912	8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe	32
PID 1360 wrote to memory of 1068	1360	Explorer.EXE	33
PID 1360 wrote to memory of 1068	1360	Explorer.EXE	33
PID 1360 wrote to memory of 1068	1360	Explorer.EXE	33
PID 1360 wrote to memory of 1068	1360	Explorer.EXE	33
PID 1360 wrote to memory of 1068	1360	Explorer.EXE	33
PID 1360 wrote to memory of 1068	1360	Explorer.EXE	33
PID 1360 wrote to memory of 1068	1360	Explorer.EXE	33
PID 1068 wrote to memory of 1668	1068	rundll32.exe	34
PID 1068 wrote to memory of 1668	1068	rundll32.exe	34
PID 1068 wrote to memory of 1668	1068	rundll32.exe	34
PID 1068 wrote to memory of 1668	1068	rundll32.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1360
- C:\Users\Admin\AppData\Local\Temp\8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe
  "C:\Users\Admin\AppData\Local\Temp\8e4936a8044f833fa8b5e67067208e8b81c0ca55844122013afe82a0af3b6eb6.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:912
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\KWWHHQhTOU.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1764
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KWWHHQhTOU" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5C44.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:2040
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:780
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:1116
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:520
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1068
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:1668

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp5C44.tmp

Filesize
1KB

MD5
63a8fa69bfabe74b68dcf6d783df4d3b

SHA1
9f11fe51406ac54f471dc97c04327c85e98419a7

SHA256
84c2c0cc250330a2a38f02b2b871f4a33f16b8f30af64e7ae0e1b4423480f942

SHA512
d0c93fb1d09562695965b439766de4de1d93fb6dc2976aa66e94464b29c79c6b7ceb92a888930a2992ba995c0c3d062ca29f3df829c818a0fc123f75d7e30e43

Download Submit
memory/520-69-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/520-81-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/520-78-0x00000000002C0000-0x00000000002D4000-memory.dmp

Filesize
80KB

Download
memory/520-76-0x0000000000890000-0x0000000000B93000-memory.dmp

Filesize
3.0MB

Download
memory/520-71-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/520-72-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/520-70-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/912-65-0x0000000004E90000-0x0000000004E96000-memory.dmp

Filesize
24KB

Download
memory/912-55-0x0000000004F70000-0x0000000004FB0000-memory.dmp

Filesize
256KB

Download
memory/912-54-0x0000000000E00000-0x0000000000F20000-memory.dmp

Filesize
1.1MB

Download
memory/912-59-0x00000000056C0000-0x000000000576E000-memory.dmp

Filesize
696KB

Download
memory/912-58-0x0000000000470000-0x000000000047C000-memory.dmp

Filesize
48KB

Download
memory/912-66-0x0000000004F10000-0x0000000004F48000-memory.dmp

Filesize
224KB

Download
memory/912-57-0x0000000004F70000-0x0000000004FB0000-memory.dmp

Filesize
256KB

Download
memory/912-56-0x00000000002B0000-0x00000000002CA000-memory.dmp

Filesize
104KB

Download
memory/1068-89-0x00000000009C0000-0x0000000000A53000-memory.dmp

Filesize
588KB

Download
memory/1068-80-0x0000000000AF0000-0x0000000000AFE000-memory.dmp

Filesize
56KB

Download
memory/1068-82-0x0000000000AF0000-0x0000000000AFE000-memory.dmp

Filesize
56KB

Download
memory/1068-84-0x0000000000AF0000-0x0000000000AFE000-memory.dmp

Filesize
56KB

Download
memory/1068-85-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/1068-86-0x00000000022B0000-0x00000000025B3000-memory.dmp

Filesize
3.0MB

Download
memory/1068-87-0x0000000000090000-0x00000000000BF000-memory.dmp

Filesize
188KB

Download
memory/1360-79-0x0000000004900000-0x00000000049C3000-memory.dmp

Filesize
780KB

Download
memory/1360-90-0x0000000006260000-0x0000000006342000-memory.dmp

Filesize
904KB

Download
memory/1360-91-0x0000000006260000-0x0000000006342000-memory.dmp

Filesize
904KB

Download
memory/1360-93-0x0000000006260000-0x0000000006342000-memory.dmp

Filesize
904KB

Download
memory/1764-73-0x0000000002620000-0x0000000002660000-memory.dmp

Filesize
256KB

Download
memory/1764-77-0x0000000002620000-0x0000000002660000-memory.dmp

Filesize
256KB

Download