formbook | cf9565db0c7e242dafc592fd88893bf46a3201a17372675fef4cfcbd558d1c5b

Analysis

max time kernel
119s
max time network
119s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05-04-2024 05:20

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General

Target

cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe
Size

501KB
MD5

cbea4cf442e07bb6aa122f1b8eddef4d
SHA1

d741e5ed6ea3c6d0fb068423a9637e5efa384142
SHA256

cf9565db0c7e242dafc592fd88893bf46a3201a17372675fef4cfcbd558d1c5b
SHA512

90258c71eb5cc4379c7438f31136d0a2af5e44ad7fbb88c08df1de7cb6d3f954711bad0a18cbb144bd5d70ae7827c25888ce240f54af93d9ff049e725d253248
SSDEEP

12288:VSzmwxmwfYOxjTX4tFrM/lxZvrw9bd1kgc:+mwxwO6NulxZc5d1kj

Score

10^/10

formbook dn7r rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dn7r

Decoy

eventphotographerdfw.com

thehalalcoinstaking.com

philipfaziofineart.com

intercoh.com

gaiaseyephotography.com

chatbotforrealestate.com

lovelancemg.com

marlieskasberger.com

elcongoenespanol.info

lepirecredit.com

distribution-concept.com

e99game.com

exit11festival.com

twodollartoothbrushclub.com

cocktailsandlawn.com

performimprove.network

24horas-telefono-11840.com

cosmossify.com

kellenleote.com

perovskite.energy

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
behavioral1/memory/1760-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Loads dropped DLL 2 IoCs

pid	Process
1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe
2120	WerFault.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1232 set thread context of 1760	1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe	28

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2120	1232	WerFault.exe	27

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1760	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1232 wrote to memory of 1760	1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe	28
PID 1232 wrote to memory of 1760	1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe	28
PID 1232 wrote to memory of 1760	1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe	28
PID 1232 wrote to memory of 1760	1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe	28
PID 1232 wrote to memory of 1760	1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe	28
PID 1232 wrote to memory of 1760	1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe	28
PID 1232 wrote to memory of 1760	1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe	28
PID 1232 wrote to memory of 2120	1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe	29
PID 1232 wrote to memory of 2120	1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe	29
PID 1232 wrote to memory of 2120	1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe	29
PID 1232 wrote to memory of 2120	1232	cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe	29

C:\Users\Admin\AppData\Local\Temp\cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1232
- C:\Users\Admin\AppData\Local\Temp\cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\cbea4cf442e07bb6aa122f1b8eddef4d_JaffaCakes118.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1760
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 1232 -s 496
  2⤵
  - Loads dropped DLL
  - Program crash
  PID:2120

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\nso19C9.tmp\yfvmdnif.dll

Filesize
33KB

MD5
c6f46b711b17ddbcb63a52552f1545fd

SHA1
7f0cf73617829660b06ead76dc37db322f48a565

SHA256
fd1e3db80099afb4fad792e226d1055b350ee96286633a356926b7ac180932b0

SHA512
25862ccaab810ba1ac3c58b12aa8c114d25436f3f5273c4c59621044b398aa98f4d40569e5232aeaf1ef41c4e396ad172faa71de92aae8d196ad947666cc94f7

Download Submit
memory/1232-8-0x0000000010000000-0x000000001000B000-memory.dmp

Filesize
44KB

Download
memory/1760-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1760-13-0x0000000000800000-0x0000000000B03000-memory.dmp

Filesize
3.0MB

Download