formbook | 1fa61bb029466f4fe3ed9385994dcaed8b25715931e460f9b4db88ec155ec6a3

General

Target
Scan_07062020.exe
Size 335KB
Sample201109-k4ryemskte
SHA256 1fa61bb029466f4fe3ed9385994dcaed8b25715931e460f9b4db88ec155ec6a3
MD5 0efca6807eac19cadeb17ec53e9c7cd8
SHA1 68d4ae01ba1fe5af81b634cb569e2062a11b305e
SHA512 d9d4c2fa717b42a057ae610941baf33b2ca53daf9a61f13aede7c498ae5b2af62424e6ed0de78381fa621124698fa06225293ec71203058219dc18761730a949
MD5 SHA1 SHA512

Score

10^/10

formbook persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.norjax.com/hxb/

Decoy

550731.top
dschezzi.com
dalinoshop.com
cvteh.online
sridurgaentertainment.com
mybisnet.com
beijingkeshi-ip.com
cmoudontheroad.com
australianaesthetics.com
alison.guru
cabdesign.biz
vppinc2008.com
blueskycampaigns.com
englishkadikoy.com
gaikeji.com
andreeacarisa.com
schnauzer-lovers-corner.com
ordermandwmarket.com
steeals.com
wellnesswithinyou.net
henmeil.net
2690879.top
unbornpeople.net
goinpay.com
amarfish.com
trutudios.com
greenprem.com
nanxingbokai.com
mingchengzaixian.com
zgkaishan.com
385ope.com
rijscholenvergelijken.online
stevejacksonprata.com
infernoundergo.com
tphandesign.com
possiblecopy.site
dreamhighdance.com
marahlaqo.com
edisudsa.com
penhouse.biz
fuece.info
maneed.net
vipoffer3.com
tysubway.net
vlkstars1.life
believeinj.com
xn--2hv35b3z8d.net
deeplearningalgorithm.com
wzpyq.com
zhkslxh.com
nnx.ink
weirdwriterscompany.com
halthazard.win
midwest3dprinting.net
lyndsihouskeeper.com
farmaciasanmartin.com
npscomponentes.com
qubohomes.com
poonians.com
computermatrix.com
jiushenggj.com
bbgan77.com
joyeriagya.com
jsjcqm.com

Signatures

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

Formbook Payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/3916-0-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral2/memory/3916-1-0x000000000041E2B0-mapping.dmp	formbook
behavioral2/memory/196-3-0x0000000000000000-mapping.dmp	formbook

ServiceHost packer 1 IoCs

Detects ServiceHost packer used for .NET malware

resource	yara_rule
behavioral2/memory/8-9-0x0000000000000000-mapping.dmp	servicehost

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	cmd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\TV6HZFW8FXU = "C:\\Program Files (x86)\\Ptbcllj\\n470rh1bwtkp.exe"	cmd.exe

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

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3276 set thread context of 3916	3276	Scan_07062020.exe	78
PID 3916 set thread context of 3028	3916	Scan_07062020.exe	57
PID 196 set thread context of 3028	196	cmd.exe	57

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Ptbcllj\n470rh1bwtkp.exe	cmd.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1985363256-3005190890-1182679451-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmd.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
3916	Scan_07062020.exe
3916	Scan_07062020.exe
3916	Scan_07062020.exe
3916	Scan_07062020.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
3916	Scan_07062020.exe
3916	Scan_07062020.exe
3916	Scan_07062020.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe
196	cmd.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3916	Scan_07062020.exe
Token: SeDebugPrivilege	196	cmd.exe
Token: SeShutdownPrivilege	3028	Explorer.EXE
Token: SeCreatePagefilePrivilege	3028	Explorer.EXE
Token: SeShutdownPrivilege	3028	Explorer.EXE
Token: SeCreatePagefilePrivilege	3028	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3276 wrote to memory of 3916	3276	Scan_07062020.exe	78
PID 3276 wrote to memory of 3916	3276	Scan_07062020.exe	78
PID 3276 wrote to memory of 3916	3276	Scan_07062020.exe	78
PID 3276 wrote to memory of 3916	3276	Scan_07062020.exe	78
PID 3276 wrote to memory of 3916	3276	Scan_07062020.exe	78
PID 3276 wrote to memory of 3916	3276	Scan_07062020.exe	78
PID 3028 wrote to memory of 196	3028	Explorer.EXE	80
PID 3028 wrote to memory of 196	3028	Explorer.EXE	80
PID 3028 wrote to memory of 196	3028	Explorer.EXE	80
PID 196 wrote to memory of 3312	196	cmd.exe	81
PID 196 wrote to memory of 3312	196	cmd.exe	81
PID 196 wrote to memory of 3312	196	cmd.exe	81
PID 196 wrote to memory of 8	196	cmd.exe	83
PID 196 wrote to memory of 8	196	cmd.exe	83
PID 196 wrote to memory of 8	196	cmd.exe	83

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\Scan_07062020.exe
  "C:\Users\Admin\AppData\Local\Temp\Scan_07062020.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3276
- - C:\Users\Admin\AppData\Local\Temp\Scan_07062020.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3916
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2576
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.exe"
  2⤵
  - Adds policy 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
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:196
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Scan_07062020.exe"
    3⤵
    PID:3312
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:8

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/8-10-0x00007FF69E460000-0x00007FF69E4F3000-memory.dmp

Download

memory/8-11-0x00007FF69E460000-0x00007FF69E4F3000-memory.dmp

Download

memory/8-12-0x00007FF69E460000-0x00007FF69E4F3000-memory.dmp

Download

memory/196-4-0x0000000001200000-0x0000000001259000-memory.dmp

Download

memory/196-5-0x0000000001200000-0x0000000001259000-memory.dmp

Download

memory/196-7-0x0000000001140000-0x00000000011F3000-memory.dmp

Download

memory/196-8-0x00000000066C0000-0x000000000681C000-memory.dmp

Download

memory/3916-0-0x0000000000400000-0x000000000042D000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads