formbook | fee33ec6f4b7e470ca76c30a2bafc8a8b8041ae2806086f7ce9d51c072d50518

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17-08-2024 22:14

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General

Target

a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
Size

415KB
MD5

a4593dc48b36c06b904343de10634104
SHA1

eb45d290dc0a0d163f3d61caa9c56b018184d7b0
SHA256

fee33ec6f4b7e470ca76c30a2bafc8a8b8041ae2806086f7ce9d51c072d50518
SHA512

7001be6361b4db0bf250269259301ce626550b972d05bd9b72a2d472cb0cb28b75249d8f5d50fc2d854becfc1a905a0473bc1ea631bc0e17673c0435891676c7
SSDEEP

6144:yVn8Y/2+3x5spUN1yY0zyZfrPfiUE+a/5Uvx9F2VfPKeY6:y58WhWmNEYOyBa3+a/5UJ9s

Score

10^/10

formbook lso discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

lso

Decoy

poporoshop.com

qizuan555.com

yourcraigslist.net

healthcaredegreesonline.net

takeittomax.com

xyhftl.com

bastasuv.com

sevensinsrj.com

patticrumprealestate.com

thelibraryofspice.com

ramseyedk12.com

indyhvacpros.com

smallvendingmachines.com

jscrchina.com

intospace2.net

facialhq.com

dilauto-a.online

lebaise.com

maxfaxassociates.com

kwik.life

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/840-424-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/840-429-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe

Executes dropped EXE 2 IoCs

pid	Process
864	pobnm.exe
840	AddInProcess32.exe

Loads dropped DLL 2 IoCs

pid	Process
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
864	pobnm.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\psgo.exe = "C:\\Windows\\system32\\pcalua.exe -a C:\\Users\\Admin\\pobnm.exe"	reg.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 864 set thread context of 840	864	pobnm.exe	107
PID 840 set thread context of 3408	840	AddInProcess32.exe	56
PID 840 set thread context of 3408	840	AddInProcess32.exe	56
PID 3448 set thread context of 3408	3448	cmd.exe	56

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\T9rxla6cp\Cookiesu8opkzi.exe	cmd.exe

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 6 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	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	reg.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	pobnm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-786284298-625481688-3210388970-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 43 IoCs

pid	Process
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
864	pobnm.exe
840	AddInProcess32.exe
840	AddInProcess32.exe
840	AddInProcess32.exe
840	AddInProcess32.exe
840	AddInProcess32.exe
840	AddInProcess32.exe
3448	cmd.exe
3448	cmd.exe
3448	cmd.exe
3448	cmd.exe
3448	cmd.exe
3448	cmd.exe
3448	cmd.exe
3448	cmd.exe
3448	cmd.exe
3448	cmd.exe
3448	cmd.exe
3448	cmd.exe
3448	cmd.exe
3448	cmd.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
840	AddInProcess32.exe
840	AddInProcess32.exe
840	AddInProcess32.exe
840	AddInProcess32.exe
3448	cmd.exe
3448	cmd.exe

Suspicious use of AdjustPrivilegeToken 12 IoCs

description	pid	Process
Token: SeDebugPrivilege	408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
Token: SeDebugPrivilege	864	pobnm.exe
Token: SeDebugPrivilege	840	AddInProcess32.exe
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE
Token: SeShutdownPrivilege	3408	Explorer.EXE
Token: SeCreatePagefilePrivilege	3408	Explorer.EXE
Token: SeDebugPrivilege	3448	cmd.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3408	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 408 wrote to memory of 4580	408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe	95
PID 408 wrote to memory of 4580	408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe	95
PID 408 wrote to memory of 4580	408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe	95
PID 4580 wrote to memory of 3176	4580	cmd.exe	97
PID 4580 wrote to memory of 3176	4580	cmd.exe	97
PID 4580 wrote to memory of 3176	4580	cmd.exe	97
PID 408 wrote to memory of 864	408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe	101
PID 408 wrote to memory of 864	408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe	101
PID 408 wrote to memory of 864	408	a4593dc48b36c06b904343de10634104_JaffaCakes118.exe	101
PID 864 wrote to memory of 840	864	pobnm.exe	107
PID 864 wrote to memory of 840	864	pobnm.exe	107
PID 864 wrote to memory of 840	864	pobnm.exe	107
PID 864 wrote to memory of 840	864	pobnm.exe	107
PID 864 wrote to memory of 840	864	pobnm.exe	107
PID 864 wrote to memory of 840	864	pobnm.exe	107
PID 3408 wrote to memory of 3448	3408	Explorer.EXE	118
PID 3408 wrote to memory of 3448	3408	Explorer.EXE	118
PID 3408 wrote to memory of 3448	3408	Explorer.EXE	118
PID 3448 wrote to memory of 1660	3448	cmd.exe	119
PID 3448 wrote to memory of 1660	3448	cmd.exe	119
PID 3448 wrote to memory of 1660	3448	cmd.exe	119

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3408
- C:\Users\Admin\AppData\Local\Temp\a4593dc48b36c06b904343de10634104_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\a4593dc48b36c06b904343de10634104_JaffaCakes118.exe"
  2⤵
  - Checks computer location settings
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:408
- - C:\Windows\SysWOW64\cmd.exe
    "cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v psgo.exe /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\pobnm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4580
  - - C:\Windows\SysWOW64\reg.exe
      REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v psgo.exe /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\pobnm.exe"
      4⤵
      Adds Run key to start application
      System Location Discovery: System Language Discovery
      PID:3176
- - C:\Users\Admin\pobnm.exe
    "C:\Users\Admin\pobnm.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:864
  - - C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe
      "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:840
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2912
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2936
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3792
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1168
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1724
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:4912
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3448
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1660

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

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\Local\Temp\4acacee3-cefe-4dab-b6f1-01f9a63ec79a\e.dll

Filesize
94KB

MD5
14ff402962ad21b78ae0b4c43cd1f194

SHA1
f8a510eb26666e875a5bdd1cadad40602763ad72

SHA256
fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

SHA512
daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

Download Submit
C:\Users\Admin\AppData\Local\Temp\AddInProcess32.exe

Filesize
42KB

MD5
9827ff3cdf4b83f9c86354606736ca9c

SHA1
e73d73f42bb2a310f03eb1bcbb22be2b8eb7c723

SHA256
c1cf3dc8fa1c7fc00f88e07ad539979b3706ca8d69223cffd1d58bc8f521f63a

SHA512
8261828d55f3b5134c0aeb98311c04e20c5395d4347251746f3be0fb854f36cc7e118713cd00c9867537e6e47d5e71f2b2384fc00c67f0ae1b285b8310321579

Download Submit
C:\Users\Admin\pobnm.exe

Filesize
415KB

MD5
a4593dc48b36c06b904343de10634104

SHA1
eb45d290dc0a0d163f3d61caa9c56b018184d7b0

SHA256
fee33ec6f4b7e470ca76c30a2bafc8a8b8041ae2806086f7ce9d51c072d50518

SHA512
7001be6361b4db0bf250269259301ce626550b972d05bd9b72a2d472cb0cb28b75249d8f5d50fc2d854becfc1a905a0473bc1ea631bc0e17673c0435891676c7

Download Submit
memory/408-44-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-16-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-2-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/408-3-0x0000000004D20000-0x0000000004D4C000-memory.dmp

Filesize
176KB

Download
memory/408-4-0x0000000005460000-0x0000000005A04000-memory.dmp

Filesize
5.6MB

Download
memory/408-5-0x0000000004E00000-0x0000000004E44000-memory.dmp

Filesize
272KB

Download
memory/408-6-0x0000000004F50000-0x0000000004FE2000-memory.dmp

Filesize
584KB

Download
memory/408-66-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-56-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-42-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-24-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-76-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-74-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-72-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-70-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-68-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-64-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-62-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-60-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-58-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-54-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-52-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-40-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-48-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-46-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-0-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/408-50-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-38-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-1-0x00000000003F0000-0x000000000045E000-memory.dmp

Filesize
440KB

Download
memory/408-34-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-32-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-30-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-28-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-26-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-22-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-20-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-18-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-36-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-15-0x0000000004D20000-0x0000000004D45000-memory.dmp

Filesize
148KB

Download
memory/408-14-0x0000000073510000-0x0000000073599000-memory.dmp

Filesize
548KB

Download
memory/408-195-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

Filesize
4KB

Download
memory/408-196-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/408-197-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/408-199-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/408-230-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/840-424-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/840-426-0x0000000000F90000-0x00000000012DA000-memory.dmp

Filesize
3.3MB

Download
memory/840-429-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/864-231-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/864-232-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/864-416-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/864-417-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/864-418-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download
memory/864-419-0x0000000006C90000-0x0000000006C9C000-memory.dmp

Filesize
48KB

Download
memory/864-425-0x0000000074A80000-0x0000000075230000-memory.dmp

Filesize
7.7MB

Download