formbook | 3a10c525b2f0a94e7e9facfa4685490e9a46d0d6a62be53f570fa845cd680c56

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
03/06/2024, 02:52

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General

Target
904fd496b076d10ab4fc547559b5d0b4_JaffaCakes118.exe
Size 576KB
Sample240603-dc9ppsgf9s
SHA256 3a10c525b2f0a94e7e9facfa4685490e9a46d0d6a62be53f570fa845cd680c56
MD5 904fd496b076d10ab4fc547559b5d0b4
SHA1 b8e8a890eb523e786793e95a305d319632a60e87
SHA512 3c5f5ca06c0eb27ba1156d8ca3c9d7de23d3383cf8be2bd941bba14b22d81d7142a96c344941f006a82af80f617ee6680a090e56726ad2046580d2ed9374e8c2
SSDEEP 12288:EanbtiNPkq2Nu/RXNV74UlGpVXG455ihwSREfCYCNl2SSDlrgCemY87zvL:ztm8TN8oV2+UwrfCzNlkDl8S77zj
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

formbook c232 persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

Campaign

c232

Decoy

tangdourenfz.com
helpforkids.today
bioethanol-us.com
0351zc.com
3rdimultimedia.com
thecannibisconnection.net
mktoob.net
orchidinvestmentlimited.com
moccustoms.com
shopendora.com
rosariosandino.com
bien-vivre-tunisie.com
godofgreens.com
nhathuocphuongle.com
thefastsource.com
viagra2tadalafil.com
abarroteslacanasta.com
versabiosciences.com
nergiztarimhayvancilik.com
airpodsbayi.com
fitnessdan.com
passionunipessoal.com
spl.energy
review-id9326.com
studystudy.xyz
syringacio.com
beensentoe.com
pasforon.com
omegagyn.com
yourmassagewellness.com
develop-er.com
biosqualene.com
smartlocalizer.com
impotsgovparticulier.digital
primponabarbie.world
energy-x.site
tatlerstyle.com
shucaiw.pro
kita-minimum.com
nirvanatopshelf.com
thefrontrangedeals.com
cbaenterpriseaccount.com
antalyadissagligi.com
drivewalkbike.com
learn2pop.com
suzhoukelida.com
alloutthere.com
cle-ar.com
ditaaulia.online
solarpowermate.com
amazon-account-service-webs.com
7jonquilcourt.com
beautyart-marrakech.com
asaany.com
barinetportal.com
benbernardfilms.com
mousepays.com
insidethelooppodcast.com
seatedworkouts.com
ketch-mania.com
qingfuhall.com
euphoricempress.com
veomtreadmillexpert.com
bigboltbooks.com
dokap.xyz

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/4348-50-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4348-53-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Loads dropped DLL 1 IoCs

pid	Process
3864	rundll32.exe

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

Data from Local System
T1005

Credentials In Files
T1552.001

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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\DB8XCZ9HQ = "C:\\Program Files (x86)\\Rlpfxnx2p\\yrvdbpixnhlt9hq.exe"	explorer.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4348 set thread context of 3360	4348	cmd.exe	55
PID 3372 set thread context of 3360	3372	explorer.exe	55

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Rlpfxnx2p\yrvdbpixnhlt9hq.exe	explorer.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	explorer.exe

Suspicious behavior: EnumeratesProcesses 49 IoCs

pid	Process
3864	rundll32.exe
4348	cmd.exe
4348	cmd.exe
4348	cmd.exe
4348	cmd.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
3864	rundll32.exe
4348	cmd.exe
4348	cmd.exe
4348	cmd.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe
3372	explorer.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4348	cmd.exe
Token: SeDebugPrivilege	3372	explorer.exe
Token: SeShutdownPrivilege	3360	Explorer.EXE
Token: SeCreatePagefilePrivilege	3360	Explorer.EXE
Token: SeShutdownPrivilege	3360	Explorer.EXE
Token: SeCreatePagefilePrivilege	3360	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3360	Explorer.EXE

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 4808 wrote to memory of 3864	4808	904fd496b076d10ab4fc547559b5d0b4_JaffaCakes118.exe	83
PID 4808 wrote to memory of 3864	4808	904fd496b076d10ab4fc547559b5d0b4_JaffaCakes118.exe	83
PID 4808 wrote to memory of 3864	4808	904fd496b076d10ab4fc547559b5d0b4_JaffaCakes118.exe	83
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84
PID 3864 wrote to memory of 4348	3864	rundll32.exe	84

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
PID:3360
- C:\Users\Admin\AppData\Local\Temp\904fd496b076d10ab4fc547559b5d0b4_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\904fd496b076d10ab4fc547559b5d0b4_JaffaCakes118.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4808
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe Conservatory,Piggins
    3⤵
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:3864
  - - C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe"
      4⤵
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4348
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  PID:3372
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\cmd.exe"
    3⤵
    PID:2336
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    PID:1388
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:3384

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

Bortsch

Path C:\Users\Admin\AppData\Local\Temp\Bortsch
Size 328KB
SHA256 fb0c43ea5b29f44aedf038dc5f0dbe25f9678b726cbeb98b7326cb6c54fceaaa
MD5 0a1abca59ff51574b3ce8e0e9778314d
SHA1 c0d93d6c842297c70581a591b6a7809294749f69
SHA512 678acd9c8e999013238054e8bd771bc07f9c226d7d06b57544b6528cd7adee0f7265d16b2fc74a23c9444096a1fd793a94588d7afdfd71d76308a8acc6d25e2f
SSDEEP 6144:gWjMUC9TMG6eoVh8S79bmfNjs2oqCNle/6SDl2wDERssnbmYE7W3DHaq:gWjk3ih8SRqfCYCNleSSDltgCymYE74
MD5 SHA1 SHA512 SSDEEP

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Conservatory.DLL

Path C:\Users\Admin\AppData\Local\Temp\Conservatory.DLL
Size 43KB
SHA256 0a5e2d346b9e7296275bf79fbda56cfc21a8af540b836dba04df1b6270bfe2c3
MD5 255c2887e6b5f9756a9a473952e0807a
SHA1 b13718feb8e932e6a59d76a9984fa043d6f7826b
SHA512 e45ee410d61639ea098c9d8f831126d62cb67144834e6da6bab5c929cc8fe7a92493ef8a0c83c73b19942540318598987214c6b3377d6959425a91d269527823
SSDEEP 768:GTLZ/ZYB0KBLqpnn9rhwmmnTEDi4hvyPTsU9MBacUlT:GTt/ZQ0EM99MJbdMUcUlT
MD5 SHA1 SHA512 SSDEEP

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DB1

Path C:\Users\Admin\AppData\Local\Temp\DB1
Size 46KB
SHA256 776ecf8411b1b0167bea724409ac9d3f8479973df223ecc6e60e3302b3b2b8ea
MD5 8f5942354d3809f865f9767eddf51314
SHA1 20be11c0d42fc0cef53931ea9152b55082d1a11e
SHA512 fde8dfae8a862cf106b0cb55e02d73e4e4c0527c744c20886681245c8160287f722612a6de9d0046ed1156b1771229c8950b9ac036b39c988d75aa20b7bac218
SSDEEP 96:FSXNKLyeymwHCn8MouOFlRGiZqYtFTCG:FSfHG7qqifTCG
MD5 SHA1 SHA512 SSDEEP

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74-logim.jpeg

Path C:\Users\Admin\AppData\Roaming\74-76ATE\74-logim.jpeg
Size 83KB
SHA256 89c55ae80d63d1c945f43f89a717ae771a084455d1ce60a1daefe872dbf8063b
MD5 a22b9dc63b2462cadde1ac3d54a2554c
SHA1 999af5ab25d3e3bc358e290cb20232f9fc681216
SHA512 7dd07506cc0758a4fbd2d9f364d08b393788cccd6e3e319f3f574ce24a629820cb7a3a9fd424dbbb900812e2f6bbe9b8d5763109e8cfc3b6ef26d221fe49f222
SSDEEP 1536:seA6ulp4MN7GQBJeeaHmPTGp7Mbx4EhKBavqk+VfXdEooIG1qcwIDfGvU:W6uRROFoGFMbxVhKBaik+HEooIWfGvU
MD5 SHA1 SHA512 SSDEEP

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74-logrf.ini

Path C:\Users\Admin\AppData\Roaming\74-76ATE\74-logrf.ini
Size 40B
SHA256 1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361
MD5 2f245469795b865bdd1b956c23d7893d
SHA1 6ad80b974d3808f5a20ea1e766c7d2f88b9e5895
SHA512 909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f
MD5 SHA1 SHA512

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74-logrg.ini

Path C:\Users\Admin\AppData\Roaming\74-76ATE\74-logrg.ini
Size 38B
SHA256 75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56
MD5 4aadf49fed30e4c9b3fe4a3dd6445ebe
SHA1 1e332822167c6f351b99615eada2c30a538ff037
SHA512 eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945
MD5 SHA1 SHA512

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74-logri.ini

Path C:\Users\Admin\AppData\Roaming\74-76ATE\74-logri.ini
Size 40B
SHA256 eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae
MD5 d63a82e5d81e02e399090af26db0b9cb
SHA1 91d0014c8f54743bba141fd60c9d963f869d76c9
SHA512 38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad
MD5 SHA1 SHA512

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74-logrv.ini

Path C:\Users\Admin\AppData\Roaming\74-76ATE\74-logrv.ini
Size 872B
SHA256 ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb
MD5 bbc41c78bae6c71e63cb544a6a284d94
SHA1 33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a
SHA512 0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4
MD5 SHA1 SHA512

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memory/3360-56-0x00000000091D0000-0x00000000092F6000-memory.dmp

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memory/3372-52-0x0000000000EB0000-0x00000000012E3000-memory.dmp

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memory/3372-54-0x0000000000EB0000-0x00000000012E3000-memory.dmp

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memory/3864-46-0x0000000000600000-0x0000000000603000-memory.dmp

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memory/3864-48-0x0000000074D00000-0x0000000074DC8000-memory.dmp

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memory/3864-45-0x0000000076250000-0x00000000762B3000-memory.dmp

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memory/3864-44-0x0000000074D00000-0x0000000074DC8000-memory.dmp

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memory/4348-53-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4348-50-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/4348-47-0x0000000000FD0000-0x0000000000FD6000-memory.dmp

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