formbook | 5dc52da7b97835654bab2a3a39e93d412a50608bfd7dfccb87ff716c9aba6a37

General

Target

tmp.exe
Size

761KB
MD5

0d9b2efac64b4245292e7c3112ec8771
SHA1

61b32ec6303fd7fa890dadc3f3f18128f2c264c9
SHA256

5dc52da7b97835654bab2a3a39e93d412a50608bfd7dfccb87ff716c9aba6a37
SHA512

47d00d1a6e705662d18fb3a9885af5a8a51ad3ef4ad3bbbcabf544e5b9a959dc49be99fdea562ff6db59981941db91de761d7f3dbf59ccaaa12a9a35357081ed
SSDEEP

12288:QCZzLzeEILPryAzRVelrKhVaZF6NPeUDQ1cwCbGOaS80v2ekdeoFuPD7hXJGRTw:QCZzeEIrryORVep2QF6N/Q1bWGDTFmJT

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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/1284-140-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1284-147-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4784-149-0x00000000004F0000-0x000000000051F000-memory.dmp	formbook
behavioral2/memory/4784-151-0x00000000004F0000-0x000000000051F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

tmp.exetmp.execmstp.exe

description	pid	process	target process
PID 5084 set thread context of 1284	5084	tmp.exe	tmp.exe
PID 1284 set thread context of 2512	1284	tmp.exe	Explorer.EXE
PID 4784 set thread context of 2512	4784	cmstp.exe	Explorer.EXE

Modifies registry class 2 IoCs

Processes:

Explorer.EXE

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-1675742406-747946869-1029867430-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 44 IoCs

Processes:

tmp.execmstp.exe

pid	process
1284	tmp.exe
1284	tmp.exe
1284	tmp.exe
1284	tmp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe
4784	cmstp.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2512 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

tmp.execmstp.exe

pid process

1284 tmp.exe
1284 tmp.exe
1284 tmp.exe
4784 cmstp.exe
4784 cmstp.exe

pid	process
2512	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 42 IoCs

Processes:

tmp.execmstp.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1284	tmp.exe
Token: SeDebugPrivilege	4784	cmstp.exe
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE
Token: SeShutdownPrivilege	2512	Explorer.EXE
Token: SeCreatePagefilePrivilege	2512	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

2512 Explorer.EXE
2512 Explorer.EXE

pid	process
2512	Explorer.EXE
2512	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

tmp.exeExplorer.EXEcmstp.exe

description	pid	process	target process
PID 5084 wrote to memory of 1284	5084	tmp.exe	tmp.exe
PID 5084 wrote to memory of 1284	5084	tmp.exe	tmp.exe
PID 5084 wrote to memory of 1284	5084	tmp.exe	tmp.exe
PID 5084 wrote to memory of 1284	5084	tmp.exe	tmp.exe
PID 5084 wrote to memory of 1284	5084	tmp.exe	tmp.exe
PID 5084 wrote to memory of 1284	5084	tmp.exe	tmp.exe
PID 2512 wrote to memory of 4784	2512	Explorer.EXE	cmstp.exe
PID 2512 wrote to memory of 4784	2512	Explorer.EXE	cmstp.exe
PID 2512 wrote to memory of 4784	2512	Explorer.EXE	cmstp.exe
PID 4784 wrote to memory of 4516	4784	cmstp.exe	cmd.exe
PID 4784 wrote to memory of 4516	4784	cmstp.exe	cmd.exe
PID 4784 wrote to memory of 4516	4784	cmstp.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2512

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:5084

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1284

C:\Windows\SysWOW64\cmstp.exe
"C:\Windows\SysWOW64\cmstp.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4784

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\tmp.exe"
3⤵
PID:4516

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/1284-140-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1284-147-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1284-144-0x0000000001290000-0x00000000012A4000-memory.dmp

Filesize
80KB

Download
memory/1284-142-0x00000000017A0000-0x0000000001AEA000-memory.dmp

Filesize
3.3MB

Download
memory/2512-187-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-161-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-200-0x0000000007BB0000-0x0000000007BC0000-memory.dmp

Filesize
64KB

Download
memory/2512-168-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-167-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-199-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-145-0x0000000007AD0000-0x0000000007B95000-memory.dmp

Filesize
788KB

Download
memory/2512-166-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-197-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-196-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-195-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-194-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-193-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-192-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-154-0x0000000009020000-0x000000000918D000-memory.dmp

Filesize
1.4MB

Download
memory/2512-155-0x0000000009020000-0x000000000918D000-memory.dmp

Filesize
1.4MB

Download
memory/2512-158-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-159-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-160-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-188-0x00000000037F0000-0x00000000037F2000-memory.dmp

Filesize
8KB

Download
memory/2512-162-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-163-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-164-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-165-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-198-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-191-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-190-0x0000000007BB0000-0x0000000007BC0000-memory.dmp

Filesize
64KB

Download
memory/2512-169-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-170-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-171-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-172-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-173-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-175-0x0000000003200000-0x0000000003202000-memory.dmp

Filesize
8KB

Download
memory/2512-182-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-183-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-184-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-185-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-186-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/2512-189-0x00000000013A0000-0x00000000013B0000-memory.dmp

Filesize
64KB

Download
memory/4784-151-0x00000000004F0000-0x000000000051F000-memory.dmp

Filesize
188KB

Download
memory/4784-153-0x00000000024C0000-0x0000000002553000-memory.dmp

Filesize
588KB

Download
memory/4784-150-0x00000000025B0000-0x00000000028FA000-memory.dmp

Filesize
3.3MB

Download
memory/4784-149-0x00000000004F0000-0x000000000051F000-memory.dmp

Filesize
188KB

Download
memory/4784-148-0x00000000004D0000-0x00000000004E6000-memory.dmp

Filesize
88KB

Download
memory/4784-146-0x00000000004D0000-0x00000000004E6000-memory.dmp

Filesize
88KB

Download
memory/5084-133-0x0000000000550000-0x0000000000614000-memory.dmp

Filesize
784KB

Download
memory/5084-137-0x0000000005170000-0x000000000517A000-memory.dmp

Filesize
40KB

Download
memory/5084-136-0x0000000005230000-0x0000000005240000-memory.dmp

Filesize
64KB

Download
memory/5084-138-0x0000000005230000-0x0000000005240000-memory.dmp

Filesize
64KB

Download
memory/5084-134-0x0000000005480000-0x0000000005A24000-memory.dmp

Filesize
5.6MB

Download
memory/5084-135-0x0000000004FD0000-0x0000000005062000-memory.dmp

Filesize
584KB

Download
memory/5084-139-0x0000000006930000-0x00000000069CC000-memory.dmp

Filesize
624KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads