formbook | b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5

General

Target

b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe
Size

463KB
MD5

4d4d6884fc7d0bfd244994a57a299c66
SHA1

74f63690ee02781983d81405d4acf43bed038c6c
SHA256

b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5
SHA512

d9f074fd06fd50a2ec887a6219caa123db8bc1590f1e481f48396f42de77b0eaa837f06a4208972e6f64bb3702346ba001ace910dd3a379b0d89b51caa821e27
SSDEEP

6144:A3SUuzCaxOPyxKMQV6WjBZI3kqegi5+ck5hyrGaMvaZecVa+:A3rAePqQhBS3UKy/UcV

Score

10^/10

formbook f4ca rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

f4ca

Decoy

QYZ6iE9Y+CsiZpCBareS0uU=

N2FQLAaH6xXE

Vc6t0MQXN+Llxsqg

ElBedmSvYGGm6yLDhHqzAtmlCxWl

4VpIWShqHR5cpjfQ4bs=

mepO9miu/iFiQQ==

Z8Owqh54IlwEpDfQ4bs=

qcq4uT5HecWZG3EVwKTiUE7slrGQGiyo

IaYYoJikKDDqgV/NigZCLA==

4Xz5pfoCCW/76NnOUrFEOw==

xiijSkVJ3Yuh9OKDcmui/d2lCxWl

cr8MmfpCEu0ULsO3p6w=

JLm2yKHo7hdVb8O3p6w=

Hriy5svWm2Qfq9mPQib9jJI65gOr

2G3nkRpidunlxsqg

gPHUAeXmi8Q9ARy3

6l5WaOf8BxhQDkp5gKQ=

KHHiXs4WOqXZdPhpaw==

+UQ5Vz5O0Ms9ARy3

pNQygKu0OziAvjOHRGLnJA==

Signatures

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

Suspicious use of SetThreadContext 3 IoCs

Processes:

b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exeregsvcs.exewlanext.exe

description	pid	process	target process
PID 2148 set thread context of 2464	2148	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 2464 set thread context of 3212	2464	regsvcs.exe	Explorer.EXE
PID 1564 set thread context of 3212	1564	wlanext.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wlanext.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1013461898-3711306144-4198452673-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wlanext.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

regsvcs.exewlanext.exe

pid	process
2464	regsvcs.exe
2464	regsvcs.exe
2464	regsvcs.exe
2464	regsvcs.exe
2464	regsvcs.exe
2464	regsvcs.exe
2464	regsvcs.exe
2464	regsvcs.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe
1564	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3212 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

regsvcs.exewlanext.exe

pid process

2464 regsvcs.exe
2464 regsvcs.exe
2464 regsvcs.exe
1564 wlanext.exe
1564 wlanext.exe
1564 wlanext.exe
1564 wlanext.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

regsvcs.exewlanext.exe

description pid process

Token: SeDebugPrivilege 2464 regsvcs.exe
Token: SeDebugPrivilege 1564 wlanext.exe

pid	process
3212	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2464	regsvcs.exe
Token: SeDebugPrivilege	1564	wlanext.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 2148 wrote to memory of 2464	2148	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 2148 wrote to memory of 2464	2148	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 2148 wrote to memory of 2464	2148	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 2148 wrote to memory of 2464	2148	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 2148 wrote to memory of 2464	2148	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 2148 wrote to memory of 2464	2148	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 3212 wrote to memory of 1564	3212	Explorer.EXE	wlanext.exe
PID 3212 wrote to memory of 1564	3212	Explorer.EXE	wlanext.exe
PID 3212 wrote to memory of 1564	3212	Explorer.EXE	wlanext.exe
PID 1564 wrote to memory of 4948	1564	wlanext.exe	Firefox.exe
PID 1564 wrote to memory of 4948	1564	wlanext.exe	Firefox.exe
PID 1564 wrote to memory of 4948	1564	wlanext.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3212

C:\Users\Admin\AppData\Local\Temp\b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe
"C:\Users\Admin\AppData\Local\Temp\b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2148

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2464

C:\Windows\SysWOW64\wlanext.exe
"C:\Windows\SysWOW64\wlanext.exe"
2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1564

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4948

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1564-150-0x0000000001110000-0x000000000119F000-memory.dmp

Filesize
572KB

Download
memory/1564-147-0x00000000012F0000-0x000000000163A000-memory.dmp

Filesize
3.3MB

Download
memory/1564-148-0x0000000000940000-0x000000000096D000-memory.dmp

Filesize
180KB

Download
memory/1564-142-0x0000000000C40000-0x0000000000C57000-memory.dmp

Filesize
92KB

Download
memory/1564-145-0x0000000000C40000-0x0000000000C57000-memory.dmp

Filesize
92KB

Download
memory/1564-146-0x0000000000940000-0x000000000096D000-memory.dmp

Filesize
180KB

Download
memory/2148-133-0x00000000003D0000-0x0000000000446000-memory.dmp

Filesize
472KB

Download
memory/2464-134-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2464-143-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2464-140-0x00000000013B0000-0x00000000013C0000-memory.dmp

Filesize
64KB

Download
memory/2464-139-0x0000000001A10000-0x0000000001D5A000-memory.dmp

Filesize
3.3MB

Download
memory/2464-137-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3212-141-0x0000000008080000-0x0000000008195000-memory.dmp

Filesize
1.1MB

Download
memory/3212-151-0x00000000086B0000-0x0000000008805000-memory.dmp

Filesize
1.3MB

Download
memory/3212-152-0x00000000086B0000-0x0000000008805000-memory.dmp

Filesize
1.3MB

Download
memory/3212-154-0x00000000086B0000-0x0000000008805000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads