formbook | 157d4620189778ea181eb65ebcba012dc8c7af3a9a9cf3ceb6560daf91df940c

General

Target

b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe
Size

525KB
MD5

b5f4ecf1a13b7ef894523c990b963a84
SHA1

7dfdc4f3d25f6b11c73e3eba0ffa5925c23ee7e2
SHA256

157d4620189778ea181eb65ebcba012dc8c7af3a9a9cf3ceb6560daf91df940c
SHA512

862e55e6619f072a8a0da44c63ddd6e1a7fd1a23daa0b4244a305b61c06d95a4ec1b158760990958163dce21042bf74bf6f083f37c8fcbb74bb001836476f0e4
SSDEEP

6144:4n7MUMpVvo8i72Kqwiymx1IOkmykNnK5+gWxKbqQEskb+LOHwr6X/7cH9bMf2n8H:4kVvfA3FmXBykNn2bqFskuBr/qnp5

Score

10^/10

formbook private rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.9

Campaign

private

Decoy

epsilonducts.net

stateofpunjab.com

followthegirl.com

parol2.men

hungryforlondon.com

comercializadorafqe.com

sippinteawithlynnmarie.com

qianbi.group

tbfuk.com

ladybosscbdoil.com

reginatowingservices.com

avangardmerefa.com

rn-structure.com

skymansionexpatriate.com

eloiseantonie.com

leegardenapartmentsbeijing.com

selfievideochallenge.com

kay-lubcke.com

buybitcoininmalta.com

pusatgrosirgamismuslimah.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook payload 1 IoCs
rat

Processes:

resource yara_rule

behavioral1/memory/2404-12-0x0000000000400000-0x000000000042A000-memory.dmp formbook
Executes dropped EXE 1 IoCs

Processes:

notepad.exe

pid process

2404 notepad.exe
Loads dropped DLL 8 IoCs

Processes:

b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exeWerFault.exe

pid process

1788 b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe
2996 WerFault.exe
2996 WerFault.exe
2996 WerFault.exe
2996 WerFault.exe
2996 WerFault.exe
2996 WerFault.exe
2996 WerFault.exe
Suspicious use of SetThreadContext 1 IoCs

Processes:

b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe

description pid process target process

PID 1788 set thread context of 2404 1788 b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe notepad.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2996 2404 WerFault.exe notepad.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe

pid process

1788 b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe

description pid process

Token: SeDebugPrivilege 1788 b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe

resource	yara_rule
behavioral1/memory/2404-12-0x0000000000400000-0x000000000042A000-memory.dmp	formbook

pid	process
2404	notepad.exe

pid	process
1788	b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe
2996	WerFault.exe
2996	WerFault.exe
2996	WerFault.exe
2996	WerFault.exe
2996	WerFault.exe
2996	WerFault.exe
2996	WerFault.exe

description	pid	process	target process
PID 1788 set thread context of 2404	1788	b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe	notepad.exe

pid	pid_target	process	target process
2996	2404	WerFault.exe	notepad.exe

pid	process
1788	b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe

description	pid	process
Token: SeDebugPrivilege	1788	b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exenotepad.exe

description	pid	process	target process
PID 1788 wrote to memory of 2404	1788	b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe	notepad.exe
PID 1788 wrote to memory of 2404	1788	b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe	notepad.exe
PID 1788 wrote to memory of 2404	1788	b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe	notepad.exe
PID 1788 wrote to memory of 2404	1788	b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe	notepad.exe
PID 1788 wrote to memory of 2404	1788	b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe	notepad.exe
PID 1788 wrote to memory of 2404	1788	b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe	notepad.exe
PID 1788 wrote to memory of 2404	1788	b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe	notepad.exe
PID 2404 wrote to memory of 2996	2404	notepad.exe	WerFault.exe
PID 2404 wrote to memory of 2996	2404	notepad.exe	WerFault.exe
PID 2404 wrote to memory of 2996	2404	notepad.exe	WerFault.exe
PID 2404 wrote to memory of 2996	2404	notepad.exe	WerFault.exe

C:\Users\Admin\AppData\Local\Temp\b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\b5f4ecf1a13b7ef894523c990b963a84_JaffaCakes118.exe"
1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1788

C:\Windows\temp\notepad.exe
C:\Windows\temp\notepad.exe
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2404 -s 36
3⤵
- Loads dropped DLL
- Program crash
PID:2996

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Windows\Temp\notepad.exe
Filesize
1.1MB

MD5
34aa912defa18c2c129f1e09d75c1d7e

SHA1
9c3046324657505a30ecd9b1fdb46c05bde7d470

SHA256
6df94b7fa33f1b87142adc39b3db0613fc520d9e7a5fd6a5301dd7f51f8d0386

SHA512
d1ea9368f5d7166180612fd763c87afb647d088498887961f5e7fb0a10f4a808bd5928e8a3666d70ff794093c51ecca8816f75dd47652fd4eb23dce7f9aa1f98

Download Submit
memory/1788-0-0x0000000074371000-0x0000000074372000-memory.dmp

Filesize
4KB

Download
memory/1788-1-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/1788-2-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/1788-23-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/1788-25-0x0000000074370000-0x000000007491B000-memory.dmp

Filesize
5.7MB

Download
memory/2404-7-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2404-9-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/2404-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2404-12-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download

Analysis

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