formbook | 88a9cfa636128b92a40156cdabb79f0058c7cf70bc392e60a9e8ec6c1090e6cf

General

Target

Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
Size

1.2MB
MD5

8c64b248212fd63f7c0cfdca16b6b5aa
SHA1

1ae15b049c1059d1e43ae5851005f50826c0d0b2
SHA256

88a9cfa636128b92a40156cdabb79f0058c7cf70bc392e60a9e8ec6c1090e6cf
SHA512

79581d25d4f35e1ae175f9b62789e1e8cf48b003f7f903a7a794aa85e43e2c8b73c890346f1608cdc13b9d6d42f4078184ee70709876e1dbfddd3c077a58cb0b

Score

10^/10

formbook rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

C2

http://www.elitegamerblog.com/gsg0/

Decoy

telprix.com

multiremates.com

heytiday.com

toporganik.com

tutorincranleigh.com

oakandolivemalibu.com

ronaldvalentine.com

waytopshop.com

mythai-massage.com

matrixresults.com

teamwork256.com

qqemas.men

qnmark.com

rock-singer.com

mobiledevpros.com

miramar-agents.com

desjour.com

edensplace.net

ryanrafuls.com

xg8197.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

Processes:

resource	yara_rule
behavioral2/memory/4056-122-0x0000000005A00000-0x0000000005A0B000-memory.dmp	CustAttr

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4068-125-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4068-126-0x000000000041EB40-mapping.dmp	formbook
behavioral2/memory/3648-132-0x0000000002B20000-0x0000000002B4E000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exeProforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exerundll32.exe

description	pid	process	target process
PID 4056 set thread context of 4068	4056	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
PID 4068 set thread context of 2832	4068	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe	Explorer.EXE
PID 3648 set thread context of 2832	3648	rundll32.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 42 IoCs

Processes:

Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exerundll32.exe

pid	process
4068	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
4068	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
4068	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
4068	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe
3648	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2832 Explorer.EXE

pid	process
2832	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exerundll32.exe

pid	process
4068	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
4068	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
4068	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
3648	rundll32.exe
3648	rundll32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exerundll32.exe

description	pid	process
Token: SeDebugPrivilege	4068	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
Token: SeDebugPrivilege	3648	rundll32.exe

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

2832 Explorer.EXE

pid	process
2832	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 4056 wrote to memory of 4068	4056	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
PID 4056 wrote to memory of 4068	4056	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
PID 4056 wrote to memory of 4068	4056	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
PID 4056 wrote to memory of 4068	4056	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
PID 4056 wrote to memory of 4068	4056	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
PID 4056 wrote to memory of 4068	4056	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe	Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
PID 2832 wrote to memory of 3648	2832	Explorer.EXE	rundll32.exe
PID 2832 wrote to memory of 3648	2832	Explorer.EXE	rundll32.exe
PID 2832 wrote to memory of 3648	2832	Explorer.EXE	rundll32.exe
PID 3648 wrote to memory of 3540	3648	rundll32.exe	cmd.exe
PID 3648 wrote to memory of 3540	3648	rundll32.exe	cmd.exe
PID 3648 wrote to memory of 3540	3648	rundll32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2832

C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4056

C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe
"C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4068

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3648

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Proforma Invoice No.42037 dated 26032021 for USD.78116.pdf.exe"
3⤵
PID:3540

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/2832-129-0x00000000067D0000-0x0000000006916000-memory.dmp

Filesize
1.3MB

Download
memory/2832-136-0x0000000006920000-0x0000000006A7F000-memory.dmp

Filesize
1.4MB

Download
memory/3540-134-0x0000000000000000-mapping.dmp

Download
memory/3648-135-0x0000000004D50000-0x0000000004DE3000-memory.dmp

Filesize
588KB

Download
memory/3648-132-0x0000000002B20000-0x0000000002B4E000-memory.dmp

Filesize
184KB

Download
memory/3648-133-0x0000000004A30000-0x0000000004D50000-memory.dmp

Filesize
3.1MB

Download
memory/3648-131-0x0000000000800000-0x0000000000813000-memory.dmp

Filesize
76KB

Download
memory/3648-130-0x0000000000000000-mapping.dmp

Download
memory/4056-120-0x0000000004D80000-0x0000000004D81000-memory.dmp

Filesize
4KB

Download
memory/4056-119-0x0000000004AC0000-0x0000000004AC1000-memory.dmp

Filesize
4KB

Download
memory/4056-116-0x0000000004B20000-0x0000000004B21000-memory.dmp

Filesize
4KB

Download
memory/4056-117-0x00000000050C0000-0x00000000050C1000-memory.dmp

Filesize
4KB

Download
memory/4056-118-0x0000000004BC0000-0x0000000004BC1000-memory.dmp

Filesize
4KB

Download
memory/4056-124-0x00000000073A0000-0x00000000073D5000-memory.dmp

Filesize
212KB

Download
memory/4056-123-0x00000000072E0000-0x000000000735A000-memory.dmp

Filesize
488KB

Download
memory/4056-122-0x0000000005A00000-0x0000000005A0B000-memory.dmp

Filesize
44KB

Download
memory/4056-121-0x0000000004A80000-0x0000000004B1C000-memory.dmp

Filesize
624KB

Download
memory/4056-114-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/4068-127-0x0000000001A60000-0x0000000001D80000-memory.dmp

Filesize
3.1MB

Download
memory/4068-128-0x00000000015F0000-0x0000000001604000-memory.dmp

Filesize
80KB

Download
memory/4068-126-0x000000000041EB40-mapping.dmp

Download
memory/4068-125-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads