formbook | bdf70143340796eb6300390268cc9aac6808b3225740d19769fe1bc8b621190b

General

Target

d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe
Size

429KB
MD5

d061cb634c7812ea1f9a76c834da662d
SHA1

cb1fe61a1a28cb6ada60061e8b3929e7213bb618
SHA256

bdf70143340796eb6300390268cc9aac6808b3225740d19769fe1bc8b621190b
SHA512

c4b5d31f9c7c6668f257037acbc258235f70789f9d0bdc391d32365a9a5bc064453fca35800baccca02533270f13fd30cf09ba2b9427d9339c3fc692385ea0e9
SSDEEP

12288:2w5rmS75p0eniwybzYa+UgF+2rJ0+KoNKxGq+9wmv:bzltE+UgFlJJpKxc9Z

Score

10^/10

formbook fr defense_evasion discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

fr

Decoy

koto-saitoshika.com

hamadcartoon.com

findmyperson.com

greenislandspice.com

tzcp5.com

elyfornoville.com

fuqinjiehuodong.com

psog.biz

comercializadoratancitaro.com

marketmuseum.com

yunbaobit.com

weddingvwcamperhire.com

kinetsi.com

garmentsteamersguide.com

firstchoicecorporatehousing.com

musicianunity.com

thetrustsummit.com

xn--v52b27q.com

crismar.net

cawyhy.info

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/2276-15-0x0000000000400000-0x000000000042A000-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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe

Executes dropped EXE 1 IoCs

pid	Process
2276	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3248 set thread context of 2276	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	98

Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 2 IoCs

When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

defense_evasion

SIP and Trust Provider Hijacking

T1553.003

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe:Zone.Identifier	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Temp\d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe:Zone.Identifier	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 3 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	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

NTFS ADS 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Local\Temp\d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe:Zone.Identifier	cmd.exe
File opened for modification	C:\Users\Admin\AppData\Local\Temp\d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe:Zone.Identifier	cmd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2276	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe
2276	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3248 wrote to memory of 2552	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	94
PID 3248 wrote to memory of 2552	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	94
PID 3248 wrote to memory of 2552	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	94
PID 3248 wrote to memory of 3284	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	96
PID 3248 wrote to memory of 3284	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	96
PID 3248 wrote to memory of 3284	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	96
PID 3248 wrote to memory of 2276	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	98
PID 3248 wrote to memory of 2276	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	98
PID 3248 wrote to memory of 2276	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	98
PID 3248 wrote to memory of 2276	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	98
PID 3248 wrote to memory of 2276	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	98
PID 3248 wrote to memory of 2276	3248	d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe	98

C:\Users\Admin\AppData\Local\Temp\d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3248
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C type nul > "C:\Users\Admin\AppData\Local\Temp\d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe:Zone.Identifier"
  2⤵
  - Subvert Trust Controls: Mark-of-the-Web Bypass
  - System Location Discovery: System Language Discovery
  - NTFS ADS
  PID:2552
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /C type nul > "C:\Users\Admin\AppData\Local\Temp\d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe:Zone.Identifier"
  2⤵
  - Subvert Trust Controls: Mark-of-the-Web Bypass
  - System Location Discovery: System Language Discovery
  - NTFS ADS
  PID:3284
- C:\Users\Admin\AppData\Local\Temp\d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:2276

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Subvert Trust Controls

1

T1553

SIP and Trust Provider Hijacking

1

T1553.003

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\d061cb634c7812ea1f9a76c834da662d_JaffaCakes118.exe

Filesize
429KB

MD5
d061cb634c7812ea1f9a76c834da662d

SHA1
cb1fe61a1a28cb6ada60061e8b3929e7213bb618

SHA256
bdf70143340796eb6300390268cc9aac6808b3225740d19769fe1bc8b621190b

SHA512
c4b5d31f9c7c6668f257037acbc258235f70789f9d0bdc391d32365a9a5bc064453fca35800baccca02533270f13fd30cf09ba2b9427d9339c3fc692385ea0e9

Download Submit
memory/2276-15-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2276-19-0x00000000010F0000-0x000000000143A000-memory.dmp

Filesize
3.3MB

Download
memory/3248-8-0x0000000005510000-0x0000000005518000-memory.dmp

Filesize
32KB

Download
memory/3248-10-0x00000000063E0000-0x0000000006984000-memory.dmp

Filesize
5.6MB

Download
memory/3248-5-0x0000000002C80000-0x0000000002CAA000-memory.dmp

Filesize
168KB

Download
memory/3248-6-0x0000000005700000-0x00000000058C2000-memory.dmp

Filesize
1.8MB

Download
memory/3248-7-0x0000000005DC0000-0x0000000005E26000-memory.dmp

Filesize
408KB

Download
memory/3248-0-0x0000000074AFE000-0x0000000074AFF000-memory.dmp

Filesize
4KB

Download
memory/3248-9-0x0000000005D80000-0x0000000005DA2000-memory.dmp

Filesize
136KB

Download
memory/3248-4-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/3248-11-0x0000000005340000-0x000000000534C000-memory.dmp

Filesize
48KB

Download
memory/3248-12-0x0000000005F10000-0x0000000005FA2000-memory.dmp

Filesize
584KB

Download
memory/3248-13-0x0000000005F00000-0x0000000005F0C000-memory.dmp

Filesize
48KB

Download
memory/3248-14-0x0000000006A90000-0x0000000006B2C000-memory.dmp

Filesize
624KB

Download
memory/3248-3-0x0000000074AFE000-0x0000000074AFF000-memory.dmp

Filesize
4KB

Download
memory/3248-2-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/3248-18-0x0000000074AF0000-0x00000000752A0000-memory.dmp

Filesize
7.7MB

Download
memory/3248-1-0x0000000000830000-0x00000000008A2000-memory.dmp

Filesize
456KB

Download

Analysis

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