formbook | 31bca1958a79f4759d45877792d31ce6489a9b12abfd306218cab030f8f86e0b

Analysis

max time kernel
150s
max time network
138s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
29-03-2023 20:57

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General

Target

test.exe
Size

185KB
MD5

c4fb6a54f9d13d0b7d68c344642587d2
SHA1

5d5f8a45e56add2a6ff277f8d5fa06a29ada957a
SHA256

31bca1958a79f4759d45877792d31ce6489a9b12abfd306218cab030f8f86e0b
SHA512

7db73aa24b61d85022c23a924025acd2e2e98d03b00eada01140152ee6acd82754e0a1ed2745c11234679d1b61343e1fa854a06af3841524ab7b797ca9f271ed
SSDEEP

3072:I3k9Eu2PDPlFm3TiZHhJmoapMZRrr9d+/eqeibwnFUMGBY8:zkQTeHlaGZRX9K4XeY8

Score

10^/10

formbook ar73 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ar73

Decoy

classgorilla.com

b6817.com

1wwuwa.top

dgslimited.africa

deepwaterships.com

hkshshoptw.shop

hurricanevalleyatvjamboree.com

ckpconsulting.com

laojiangmath.com

authenticityhacking.com

family-doctor-53205.com

investinstgeorgeut.com

lithoearthsolution.africa

quickhealcareltd.co.uk

delightkgrillw.top

freezeclosettoilet.com

coo1star.com

gemgamut.com

enrichednetworksolutions.com

betterbeeclean.com

Signatures

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

Formbook payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1440-139-0x0000000000B00000-0x0000000000B2F000-memory.dmp	formbook
behavioral2/memory/1440-141-0x0000000000B00000-0x0000000000B2F000-memory.dmp	formbook

Suspicious use of SetThreadContext 2 IoCs

Processes:

test.exesvchost.exe

description	pid	process	target process
PID 4616 set thread context of 3140	4616	test.exe	Explorer.EXE
PID 1440 set thread context of 3140	1440	svchost.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 62 IoCs

Processes:

test.exesvchost.exe

pid	process
4616	test.exe
4616	test.exe
4616	test.exe
4616	test.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe
1440	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3140 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

test.exesvchost.exe

pid process

4616 test.exe
4616 test.exe
4616 test.exe
1440 svchost.exe
1440 svchost.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

test.exesvchost.exe

description pid process

Token: SeDebugPrivilege 4616 test.exe
Token: SeDebugPrivilege 1440 svchost.exe

pid	process
3140	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	4616	test.exe
Token: SeDebugPrivilege	1440	svchost.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Explorer.EXEsvchost.exe

description	pid	process	target process
PID 3140 wrote to memory of 1440	3140	Explorer.EXE	svchost.exe
PID 3140 wrote to memory of 1440	3140	Explorer.EXE	svchost.exe
PID 3140 wrote to memory of 1440	3140	Explorer.EXE	svchost.exe
PID 1440 wrote to memory of 1100	1440	svchost.exe	cmd.exe
PID 1440 wrote to memory of 1100	1440	svchost.exe	cmd.exe
PID 1440 wrote to memory of 1100	1440	svchost.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3140

C:\Users\Admin\AppData\Local\Temp\test.exe
"C:\Users\Admin\AppData\Local\Temp\test.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4616

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\SysWOW64\svchost.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1440

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\test.exe"
3⤵
PID:1100

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1440-136-0x0000000000B90000-0x0000000000B9E000-memory.dmp

Filesize
56KB

Download
memory/1440-138-0x0000000000B90000-0x0000000000B9E000-memory.dmp

Filesize
56KB

Download
memory/1440-139-0x0000000000B00000-0x0000000000B2F000-memory.dmp

Filesize
188KB

Download
memory/1440-140-0x0000000001800000-0x0000000001B4A000-memory.dmp

Filesize
3.3MB

Download
memory/1440-141-0x0000000000B00000-0x0000000000B2F000-memory.dmp

Filesize
188KB

Download
memory/1440-143-0x00000000016A0000-0x0000000001733000-memory.dmp

Filesize
588KB

Download
memory/3140-135-0x00000000026B0000-0x00000000027E9000-memory.dmp

Filesize
1.2MB

Download
memory/3140-144-0x0000000007CB0000-0x0000000007DDE000-memory.dmp

Filesize
1.2MB

Download
memory/3140-145-0x0000000007CB0000-0x0000000007DDE000-memory.dmp

Filesize
1.2MB

Download
memory/3140-147-0x0000000007CB0000-0x0000000007DDE000-memory.dmp

Filesize
1.2MB

Download
memory/4616-134-0x0000000000C70000-0x0000000000C84000-memory.dmp

Filesize
80KB

Download
memory/4616-133-0x0000000000D20000-0x000000000106A000-memory.dmp

Filesize
3.3MB

Download