formbook | f3ddc95f31cacb29b7ec70b8dd6f0fb5befb759f7044e491b269417e91037d1d

General

Target

Shipping Docs_pdf.exe
Size

1.4MB
MD5

6bcd66deb9a6bddfa3f2329cde1b6126
SHA1

e2414d88355d9d1f37c77d1562f1f1c8a2716880
SHA256

f3ddc95f31cacb29b7ec70b8dd6f0fb5befb759f7044e491b269417e91037d1d
SHA512

731921ac4210c5a4f0227bb4637f9fa525b9f56b88e00bc13fbe4a15579dcd7c762e3d29e6076e3157ba04f9ca9830da2000dc2134e1da8ff44f93bb5b35eb88

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.huynhanhdung.com/kna/

Decoy

lawrencefiredepartment.com

executivehomeoffices.com

solfed.world

oshawaexchange.com

webdavlexstore.com

youpieb.com

chiller-master.com

bearstoragetn.com

daf90x16.com

gewhacaalouine.com

simplyezi.com

cstechnologyservices.com

nosyboats.com

thecocomarie.com

vetinaryeco.club

americangoselfilm.com

gdsuhejia.com

verbunden-sein.net

the-minerva.com

loctrantv.com

Signatures

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

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2232-13-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/2232-14-0x000000000041EAB0-mapping.dmp	formbook
behavioral2/memory/2600-23-0x00000000005A0000-0x00000000005CE000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

Shipping Docs_pdf.exeShipping Docs_pdf.exesvchost.exe

description	pid	process	target process
PID 540 set thread context of 2232	540	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 2232 set thread context of 3016	2232	Shipping Docs_pdf.exe	Explorer.EXE
PID 2600 set thread context of 3016	2600	svchost.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 49 IoCs

Processes:

Shipping Docs_pdf.exeShipping Docs_pdf.exesvchost.exe

pid	process
540	Shipping Docs_pdf.exe
540	Shipping Docs_pdf.exe
540	Shipping Docs_pdf.exe
2232	Shipping Docs_pdf.exe
2232	Shipping Docs_pdf.exe
2232	Shipping Docs_pdf.exe
2232	Shipping Docs_pdf.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe
2600	svchost.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Shipping Docs_pdf.exesvchost.exe

pid process

2232 Shipping Docs_pdf.exe
2232 Shipping Docs_pdf.exe
2232 Shipping Docs_pdf.exe
2600 svchost.exe
2600 svchost.exe

pid	process
2232	Shipping Docs_pdf.exe
2232	Shipping Docs_pdf.exe
2232	Shipping Docs_pdf.exe
2600	svchost.exe
2600	svchost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Shipping Docs_pdf.exeShipping Docs_pdf.exesvchost.exe

description	pid	process
Token: SeDebugPrivilege	540	Shipping Docs_pdf.exe
Token: SeDebugPrivilege	2232	Shipping Docs_pdf.exe
Token: SeDebugPrivilege	2600	svchost.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3016 Explorer.EXE

pid	process
3016	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Shipping Docs_pdf.exeExplorer.EXEsvchost.exe

description	pid	process	target process
PID 540 wrote to memory of 2232	540	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 540 wrote to memory of 2232	540	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 540 wrote to memory of 2232	540	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 540 wrote to memory of 2232	540	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 540 wrote to memory of 2232	540	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 540 wrote to memory of 2232	540	Shipping Docs_pdf.exe	Shipping Docs_pdf.exe
PID 3016 wrote to memory of 2600	3016	Explorer.EXE	svchost.exe
PID 3016 wrote to memory of 2600	3016	Explorer.EXE	svchost.exe
PID 3016 wrote to memory of 2600	3016	Explorer.EXE	svchost.exe
PID 2600 wrote to memory of 3452	2600	svchost.exe	cmd.exe
PID 2600 wrote to memory of 3452	2600	svchost.exe	cmd.exe
PID 2600 wrote to memory of 3452	2600	svchost.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3016

C:\Users\Admin\AppData\Local\Temp\Shipping Docs_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Shipping Docs_pdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:540

C:\Users\Admin\AppData\Local\Temp\Shipping Docs_pdf.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2232

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:2600

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Shipping Docs_pdf.exe"
3⤵
PID:3452

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/540-2-0x0000000073520000-0x0000000073C0E000-memory.dmp

Filesize
6.9MB

Download
memory/540-3-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download
memory/540-5-0x0000000007550000-0x00000000075D8000-memory.dmp

Filesize
544KB

Download
memory/540-6-0x000000000ADE0000-0x000000000ADE1000-memory.dmp

Filesize
4KB

Download
memory/540-7-0x00000000052F0000-0x00000000052F1000-memory.dmp

Filesize
4KB

Download
memory/540-8-0x000000000A980000-0x000000000A981000-memory.dmp

Filesize
4KB

Download
memory/540-9-0x00000000052E0000-0x00000000052E1000-memory.dmp

Filesize
4KB

Download
memory/540-10-0x000000000AB50000-0x000000000AB5E000-memory.dmp

Filesize
56KB

Download
memory/540-11-0x0000000005300000-0x000000000534C000-memory.dmp

Filesize
304KB

Download
memory/540-12-0x0000000005410000-0x0000000005411000-memory.dmp

Filesize
4KB

Download
memory/2232-13-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2232-14-0x000000000041EAB0-mapping.dmp

Download
memory/2232-18-0x0000000000EF0000-0x0000000000F04000-memory.dmp

Filesize
80KB

Download
memory/2232-17-0x0000000000F60000-0x0000000001280000-memory.dmp

Filesize
3.1MB

Download
memory/2600-20-0x0000000000000000-mapping.dmp

Download
memory/2600-22-0x0000000000B70000-0x0000000000B7C000-memory.dmp

Filesize
48KB

Download
memory/2600-23-0x00000000005A0000-0x00000000005CE000-memory.dmp

Filesize
184KB

Download
memory/2600-24-0x0000000003290000-0x00000000035B0000-memory.dmp

Filesize
3.1MB

Download
memory/2600-26-0x0000000002DD0000-0x0000000002E63000-memory.dmp

Filesize
588KB

Download
memory/3016-19-0x00000000067C0000-0x0000000006908000-memory.dmp

Filesize
1.3MB

Download
memory/3016-27-0x00000000063D0000-0x000000000646B000-memory.dmp

Filesize
620KB

Download
memory/3452-21-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads