formbook | fe76d90027602729ed2e7d13c8db252f609f0c99b3c3bc263ac43df01ac93dbe

General

Target

be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe
Size

405KB
MD5

be89164ecb2619c73b8aa49503c87ab3
SHA1

4527ba51a42f2e99a30fa14c0cbac17adb1a4c61
SHA256

fe76d90027602729ed2e7d13c8db252f609f0c99b3c3bc263ac43df01ac93dbe
SHA512

08e8f30f09d79978c49fbae930b305829f63b59655bccb07cc8fc2c7de7c32df2d013d82d1cd931670a0bd8984d08df36ac41186ad59f4a2a3521d6750d92f34
SSDEEP

6144:nInzaVaiwTFpxzm23Kr389xVWoi6uvLruqd6hGZEOQWiqiwjq3ZZH9cDlYLW/Vfd:InzaVaiwo23M6u+qMhGZhxd1QzMTkR2

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/4296-10-0x0000000000400000-0x000000000042E000-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-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3208 set thread context of 4296	3208	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe	100

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	be89164ecb2619c73b8aa49503c87ab3_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
2596	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
3208	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe
4296	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe
4296	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3208	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3208 wrote to memory of 2596	3208	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe	98
PID 3208 wrote to memory of 2596	3208	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe	98
PID 3208 wrote to memory of 2596	3208	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe	98
PID 3208 wrote to memory of 4296	3208	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe	100
PID 3208 wrote to memory of 4296	3208	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe	100
PID 3208 wrote to memory of 4296	3208	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe	100
PID 3208 wrote to memory of 4296	3208	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe	100
PID 3208 wrote to memory of 4296	3208	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe	100
PID 3208 wrote to memory of 4296	3208	be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe	100

C:\Users\Admin\AppData\Local\Temp\be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\be89164ecb2619c73b8aa49503c87ab3_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:3208
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\fDGILf" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCF03.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2596
- C:\Users\Admin\AppData\Local\Temp\be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\be89164ecb2619c73b8aa49503c87ab3_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:4296

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\tmpCF03.tmp

Filesize
1KB

MD5
66a24f6ef82177fd00b23fa7d3a0b582

SHA1
d2167499bc8c9ff2f6627bfe7b7f6b2bd8f55d74

SHA256
e81d8dface0d14eae2267c1929b30adab0aa796616f1437fba115acb6e5dba2d

SHA512
3208a28ff33f0debb42579651a382a413662014a648becd6cfb4ca1e175dda5153d25ba48a431184286062c3f4c834c2e0f4a969410952c50a9440d8bc0ce05c

Download Submit
memory/3208-0-0x00000000746D2000-0x00000000746D3000-memory.dmp

Filesize
4KB

Download
memory/3208-1-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/3208-2-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/3208-3-0x00000000746D2000-0x00000000746D3000-memory.dmp

Filesize
4KB

Download
memory/3208-4-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/3208-12-0x00000000746D0000-0x0000000074C81000-memory.dmp

Filesize
5.7MB

Download
memory/4296-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4296-13-0x0000000000FD0000-0x000000000131A000-memory.dmp

Filesize
3.3MB

Download
memory/4296-14-0x0000000000FD0000-0x000000000131A000-memory.dmp

Filesize
3.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads