formbook | 1ec5aeccf89c5d7a378e443e742e37f05a2aa7cb71150ee0ca4876c6b37d7b4d

General

Target

b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe
Size

612KB
MD5

b58faebe1453acc289bfd688688e2474
SHA1

730b350d9365074bcce398290a8c620c68209290
SHA256

1ec5aeccf89c5d7a378e443e742e37f05a2aa7cb71150ee0ca4876c6b37d7b4d
SHA512

bc6c24e85f9cdad6405ed187c689e21461916e85b12822027d1dcc87eeb1403154ba984cfcbc69fe812529f530561cbb9e3376fab7795ce1fc32e8883daa2ff5
SSDEEP

12288:Gmc51xGbhjB4pDHfx1TmIgzLivEv+Sbv6Xyq+mOnGrthsZJCVG:GhvGr4pzff3gN1O6mOM6G

Score

10^/10

formbook bft discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bft

Decoy

edenicities.com

buntingfordhomeservices.com

nuanceproducoes.com

divasinspire.com

capiturn.com

zbjsn.com

thegioicaytrongnha.com

featherventure.com

onbrandtrading.com

sanguoban.com

doorman.pro

ourhomie.net

iwassickonholiday.com

mrcskin.com

reallycoolmask.com

tkrbeautyinstitut.com

keytomiami.com

sesliduybeni.com

asherwebber.com

starkweatherwindows.net

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/2204-10-0x0000000000400000-0x000000000042E000-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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3112 set thread context of 2204	3112	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe	102

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 2 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	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
5008	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3112	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe
2204	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe
2204	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3112	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3112 wrote to memory of 5008	3112	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe	100
PID 3112 wrote to memory of 5008	3112	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe	100
PID 3112 wrote to memory of 5008	3112	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe	100
PID 3112 wrote to memory of 2204	3112	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe	102
PID 3112 wrote to memory of 2204	3112	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe	102
PID 3112 wrote to memory of 2204	3112	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe	102
PID 3112 wrote to memory of 2204	3112	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe	102
PID 3112 wrote to memory of 2204	3112	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe	102
PID 3112 wrote to memory of 2204	3112	b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe	102

C:\Users\Admin\AppData\Local\Temp\b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3112
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\FpWaZyoK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEEDF.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:5008
- C:\Users\Admin\AppData\Local\Temp\b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\b58faebe1453acc289bfd688688e2474_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2204

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpEEDF.tmp

Filesize
1KB

MD5
5df3ba9770be4b922fb7a42305196b46

SHA1
ab4214bff3784bb0311f90532a8bd27e275e0208

SHA256
dc7e511cf5163d9c19026063dea74202efdb69235fcb9ee66dcb686912bf9848

SHA512
9f2960d455e795e42e86445cb45ddac7f8458eb34d49f45362049cec26d7debbf46a88aa9886824164bcdf8126398384c6915fb6d72704008811fa7d8882c29f

Download Submit
memory/2204-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2204-13-0x00000000019B0000-0x0000000001CFA000-memory.dmp

Filesize
3.3MB

Download
memory/3112-0-0x0000000075422000-0x0000000075423000-memory.dmp

Filesize
4KB

Download
memory/3112-1-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/3112-2-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/3112-3-0x0000000075422000-0x0000000075423000-memory.dmp

Filesize
4KB

Download
memory/3112-4-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download
memory/3112-12-0x0000000075420000-0x00000000759D1000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads