formbook | ba2ce61e1e3984cb24f63bb91177a6fde0927a1def5ff6723d00dd81755cc8a0

Analysis

max time kernel
149s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240709-en
resource tags

arch:x64arch:x86image:win10v2004-20240709-enlocale:en-usos:windows10-2004-x64system
submitted
23/07/2024, 12:45

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General

Target
FSW510972H6P0.exe
Size 955KB
Sample240723-py3daszglm
SHA256 ba2ce61e1e3984cb24f63bb91177a6fde0927a1def5ff6723d00dd81755cc8a0
MD5 9508e8bbc8f0a38cbb4841f94e2047e5
SHA1 47f6a6d32162af07de295a13c41b0ca387784ca7
SHA512 0913731e073bf6f656de41da929eab2eda2b1a1455df0bc53ed278d13ae22994da47ba43dce5434e6f29e7b7deb0c6eef1faffe920442511ea19a6abe1f62b1f
SSDEEP 24576:HxItbLdW8uG3DkSbvbWpR+Ys7EUbQ400:Hxwbw7p0YKEUQ40
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

formbook de94 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

Campaign

de94

Decoy

gx899.top
whoistommy.info
vabex.shop
vduwum.rest
betbox2351.com
ch3kat0.online
kaduexpress.com
sibonline.shop
bt365918.com
betterlabs.app
denversandandgravel.net
webzlp.xyz
tdodtn263q.xyz
zamaninvest.com
vcxwpo.xyz
myastrolyfe.com
lsm8v87jnkrqcnr.buzz
ilregnodellecozze.com
auroraskynholistics.com
sewassist.com
trafficbomber.com
grupocontigoalimentacion.com
game845.bet
amandaaustininteriors.com
shucka.xyz
sa98hd.xyz
yewlmfxt.xyz
soumayagreendevelopers.online
ciaochowciao.com
datafocuslab.com
jastastringfestival2023.com
bonktate.com
ko66.services
176981243862439370.xyz
socradex.com
utxlq6q.fun
bbsbras.com
phoenix-partners.net
whi.info
kingkong212.online
snapdashers.com
socalpropertymanagers.com
www843xz11.com
jihanshop.com
marillyaffewedding.com
grouplearning.net
bot888.vip
rdljx.com
pragmajobs.com
wakeywakey.xyz
cueconsultants.com
prosportsjourney.com
tetesa.xyz
velocimeterep.com
ltjlh.com
beton24naro-fominsk.online
firstcitypr.com
tires-fast.store
li00.icu
pinkineverything.com
jvkw3r8qi6kf67e.buzz
yc92w.top
gk64.top
176123.photos
azublog1.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
behavioral2/memory/1016-12-0x0000000000400000-0x0000000001400000-memory.dmp	formbook
behavioral2/memory/1016-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1016-20-0x0000000000400000-0x0000000001400000-memory.dmp	formbook
behavioral2/memory/1060-24-0x00000000008C0000-0x00000000008EF000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
3548	imfbgfaT.pif
1016	imfbgfaT.pif

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

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 752 set thread context of 3548	752	FSW510972H6P0.exe	94
PID 752 set thread context of 1016	752	FSW510972H6P0.exe	98
PID 1016 set thread context of 3528	1016	imfbgfaT.pif	56
PID 1060 set thread context of 3528	1060	cmstp.exe	56

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2636	3548	WerFault.exe	94

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2990742725-2267136959-192470804-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmstp.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Script User-Agent 2 IoCs

Uses user-agent string associated with script host/environment.

description	flow	ioc
HTTP User-Agent header	24	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	26	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 52 IoCs

pid	Process
1016	imfbgfaT.pif
1016	imfbgfaT.pif
1016	imfbgfaT.pif
1016	imfbgfaT.pif
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1016	imfbgfaT.pif
1016	imfbgfaT.pif
1016	imfbgfaT.pif
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe
1060	cmstp.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeDebugPrivilege	1016	imfbgfaT.pif
Token: SeDebugPrivilege	1060	cmstp.exe
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE
Token: SeShutdownPrivilege	3528	Explorer.EXE
Token: SeCreatePagefilePrivilege	3528	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3528	Explorer.EXE
3528	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3528	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 752 wrote to memory of 3548	752	FSW510972H6P0.exe	94
PID 752 wrote to memory of 3548	752	FSW510972H6P0.exe	94
PID 752 wrote to memory of 3548	752	FSW510972H6P0.exe	94
PID 752 wrote to memory of 3548	752	FSW510972H6P0.exe	94
PID 752 wrote to memory of 3548	752	FSW510972H6P0.exe	94
PID 752 wrote to memory of 1016	752	FSW510972H6P0.exe	98
PID 752 wrote to memory of 1016	752	FSW510972H6P0.exe	98
PID 752 wrote to memory of 1016	752	FSW510972H6P0.exe	98
PID 752 wrote to memory of 1016	752	FSW510972H6P0.exe	98
PID 752 wrote to memory of 1016	752	FSW510972H6P0.exe	98
PID 3528 wrote to memory of 1060	3528	Explorer.EXE	99
PID 3528 wrote to memory of 1060	3528	Explorer.EXE	99
PID 3528 wrote to memory of 1060	3528	Explorer.EXE	99
PID 1060 wrote to memory of 4176	1060	cmstp.exe	100
PID 1060 wrote to memory of 4176	1060	cmstp.exe	100
PID 1060 wrote to memory of 4176	1060	cmstp.exe	100
PID 1060 wrote to memory of 2080	1060	cmstp.exe	105
PID 1060 wrote to memory of 2080	1060	cmstp.exe	105
PID 1060 wrote to memory of 2080	1060	cmstp.exe	105

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3528
- C:\Users\Admin\AppData\Local\Temp\FSW510972H6P0.exe
  "C:\Users\Admin\AppData\Local\Temp\FSW510972H6P0.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:752
- - C:\Users\Public\Libraries\imfbgfaT.pif
    C:\Users\Public\Libraries\imfbgfaT.pif
    3⤵
    - Executes dropped EXE
    PID:3548
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3548 -s 224
      4⤵
      Program crash
      PID:2636
- - C:\Users\Public\Libraries\imfbgfaT.pif
    C:\Users\Public\Libraries\imfbgfaT.pif
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1016
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1060
- - 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:4176
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2080

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3548 -ip 3548
1⤵
PID:3832

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

DB1

Path C:\Users\Admin\AppData\Local\Temp\DB1
Size 40KB
SHA256 42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914
MD5 a182561a527f929489bf4b8f74f65cd7
SHA1 8cd6866594759711ea1836e86a5b7ca64ee8911f
SHA512 9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558
SSDEEP 48:2DcnBA+IIBoCVEq8Ma0D0HOlf/6ykwpLf/EUwMHZq10bvJKLkw8s8LKvUf9KVyJJ:uSQCn8MouB6w9f/8iZqmvJKLPeymwil
MD5 SHA1 SHA512 SSDEEP

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KNPlogim.jpeg

Path C:\Users\Admin\AppData\Roaming\KNPQ4AV3\KNPlogim.jpeg
Size 87KB
SHA256 1112e717ebd0b05a0835839b4e17b108fba4313d63531614adfb909caf8a877b
MD5 2f50ecb44c58cb8edffc8e02a125e9ce
SHA1 daac5c3e2b024299d9accd9bd88e2347885e03fe
SHA512 80aae782aba56ae4d6e67294883badeccff8bc502cf3440d84e67b01ef6bdfa20e12fd29cd496cbff1a3e57f576e8825d4e47f4be119d56ef565b887342763e9
SSDEEP 1536:sKMYjQzvdDZH1SUq+5XX/wE6EJkDlQ0HYpF+gLIkjCxOi3Km/Vm3sA:SYjQZZVSUqUnYEnjRp/EQC33KWYp
MD5 SHA1 SHA512 SSDEEP

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KNPlogrf.ini

Path C:\Users\Admin\AppData\Roaming\KNPQ4AV3\KNPlogrf.ini
Size 40B
SHA256 1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361
MD5 2f245469795b865bdd1b956c23d7893d
SHA1 6ad80b974d3808f5a20ea1e766c7d2f88b9e5895
SHA512 909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f
MD5 SHA1 SHA512

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KNPlogrg.ini

Path C:\Users\Admin\AppData\Roaming\KNPQ4AV3\KNPlogrg.ini
Size 38B
SHA256 75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56
MD5 4aadf49fed30e4c9b3fe4a3dd6445ebe
SHA1 1e332822167c6f351b99615eada2c30a538ff037
SHA512 eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945
MD5 SHA1 SHA512

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KNPlogri.ini

Path C:\Users\Admin\AppData\Roaming\KNPQ4AV3\KNPlogri.ini
Size 40B
SHA256 eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae
MD5 d63a82e5d81e02e399090af26db0b9cb
SHA1 91d0014c8f54743bba141fd60c9d963f869d76c9
SHA512 38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad
MD5 SHA1 SHA512

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KNPlogrv.ini

Path C:\Users\Admin\AppData\Roaming\KNPQ4AV3\KNPlogrv.ini
Size 872B
SHA256 ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb
MD5 bbc41c78bae6c71e63cb544a6a284d94
SHA1 33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a
SHA512 0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4
MD5 SHA1 SHA512

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imfbgfaT.pif

Path C:\Users\Public\Libraries\imfbgfaT.pif
Size 66KB
SHA256 7bcdc2e607abc65ef93afd009c3048970d9e8d1c2a18fc571562396b13ebb301
MD5 c116d3604ceafe7057d77ff27552c215
SHA1 452b14432fb5758b46f2897aeccd89f7c82a727d
SHA512 9202a00eeaf4c5be94de32fd41bfea40fc32d368955d49b7bad2b5c23c4ebc92dccb37d99f5a14e53ad674b63f1baa6efb1feb27225c86693ead3262a26d66c6
SSDEEP 1536:lR2rJpByeL+39Ua1ITgA8wpuO5CU4GGMGcT4idU:lR2lg9Ua1egkCU60U
MD5 SHA1 SHA512 SSDEEP

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memory/752-0-0x00000000022E0000-0x00000000022E1000-memory.dmp

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memory/752-1-0x0000000000400000-0x00000000004F8000-memory.dmp

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memory/1016-14-0x0000000024670000-0x00000000249BA000-memory.dmp

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memory/1016-17-0x000000000041F000-0x0000000000420000-memory.dmp

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memory/1016-18-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/1016-20-0x0000000000400000-0x0000000001400000-memory.dmp

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memory/1016-12-0x0000000000400000-0x0000000001400000-memory.dmp

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memory/1060-21-0x0000000000E60000-0x0000000000E76000-memory.dmp

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memory/1060-24-0x00000000008C0000-0x00000000008EF000-memory.dmp

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memory/1060-22-0x0000000000E60000-0x0000000000E76000-memory.dmp

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memory/3528-40-0x0000000002520000-0x0000000002616000-memory.dmp

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memory/3528-43-0x0000000007950000-0x0000000007A3B000-memory.dmp

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memory/3528-19-0x0000000002520000-0x0000000002616000-memory.dmp

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memory/3548-9-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/3548-5-0x0000000000400000-0x0000000001400000-memory.dmp

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