formbook | feea2f0a365167b1c0ac7a49358f24e340005f0a85caf7343c95db8f69f75e6b

General

Target

proformafaktura.exe
Size

1.4MB
MD5

b7f3fc76e71df26b2610742c6343da72
SHA1

e8251404fa0acad1c0c5ddef1c17265e2952d3f2
SHA256

ddb5440189f6a486cae5317df13fd6fa94129941e9aa8a0586bca4c5ed97fb54
SHA512

fd94b2ba6e757cbb09cc01f5d5e7093e9ba131c4d3e5fa492b49a63a9040848e20e42ff982d4b344e5bd8f7037441ac6e5b8a98bceded13b07b5df193e0f1192

Score

10^/10

formbook n7ak rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

Decoy

audereventur.com

huro14.com

wwwjinsha155.com

antiquevendor.com

samuraisoulfood.net

traffic4updates.download

hypersarv.com

rapport-happy-wedding.com

rokutechnosupport.online

allworljob.com

hanaleedossmann.com

kauai-marathon.com

bepbosch.com

kangen-international.com

zoneshopemenowz.com

belviderewrestling.com

ipllink.com

sellingforcreators.com

wwwswty6655.com

qtumboa.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/2388-135-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral2/memory/2460-141-0x0000000000870000-0x000000000089D000-memory.dmp	formbook

Drops startup file 1 IoCs

Processes:

proformafaktura.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\.url	proformafaktura.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

proformafaktura.exeproformafaktura.exerundll32.exe

description	pid	process	target process
PID 1532 set thread context of 2388	1532	proformafaktura.exe	proformafaktura.exe
PID 2388 set thread context of 896	2388	proformafaktura.exe	Explorer.EXE
PID 2460 set thread context of 896	2460	rundll32.exe	Explorer.EXE

Drops file in Windows directory 6 IoCs

Processes:

svchost.exe

description	ioc	process
File opened for modification	C:\Windows\SoftwareDistribution\ReportingEvents.log	svchost.exe
File opened for modification	C:\Windows\WindowsUpdate.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.chk	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\Logs\edb.log	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.edb	svchost.exe
File opened for modification	C:\Windows\SoftwareDistribution\DataStore\DataStore.jfm	svchost.exe

Suspicious behavior: EnumeratesProcesses 59 IoCs

Processes:

proformafaktura.exerundll32.exe

pid	process
2388	proformafaktura.exe
2388	proformafaktura.exe
2388	proformafaktura.exe
2388	proformafaktura.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe
2460	rundll32.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

proformafaktura.exeproformafaktura.exerundll32.exe

pid	process
1532	proformafaktura.exe
1532	proformafaktura.exe
2388	proformafaktura.exe
2388	proformafaktura.exe
2388	proformafaktura.exe
2460	rundll32.exe
2460	rundll32.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

proformafaktura.exerundll32.exesvchost.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	2388	proformafaktura.exe
Token: SeDebugPrivilege	2460	rundll32.exe
Token: SeShutdownPrivilege	3964	svchost.exe
Token: SeCreatePagefilePrivilege	3964	svchost.exe
Token: SeShutdownPrivilege	3964	svchost.exe
Token: SeCreatePagefilePrivilege	3964	svchost.exe
Token: SeShutdownPrivilege	3964	svchost.exe
Token: SeCreatePagefilePrivilege	3964	svchost.exe
Token: SeShutdownPrivilege	896	Explorer.EXE
Token: SeCreatePagefilePrivilege	896	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

proformafaktura.exe

pid process

1532 proformafaktura.exe
1532 proformafaktura.exe
1532 proformafaktura.exe
Suspicious use of SendNotifyMessage 3 IoCs

Processes:

proformafaktura.exe

pid process

1532 proformafaktura.exe
1532 proformafaktura.exe
1532 proformafaktura.exe
Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

896 Explorer.EXE

pid	process
896	Explorer.EXE

Suspicious use of WriteProcessMemory 13 IoCs

Processes:

proformafaktura.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 1532 wrote to memory of 1900	1532	proformafaktura.exe	proformafaktura.exe
PID 1532 wrote to memory of 1900	1532	proformafaktura.exe	proformafaktura.exe
PID 1532 wrote to memory of 1900	1532	proformafaktura.exe	proformafaktura.exe
PID 1532 wrote to memory of 2388	1532	proformafaktura.exe	proformafaktura.exe
PID 1532 wrote to memory of 2388	1532	proformafaktura.exe	proformafaktura.exe
PID 1532 wrote to memory of 2388	1532	proformafaktura.exe	proformafaktura.exe
PID 1532 wrote to memory of 2388	1532	proformafaktura.exe	proformafaktura.exe
PID 896 wrote to memory of 2460	896	Explorer.EXE	rundll32.exe
PID 896 wrote to memory of 2460	896	Explorer.EXE	rundll32.exe
PID 896 wrote to memory of 2460	896	Explorer.EXE	rundll32.exe
PID 2460 wrote to memory of 3324	2460	rundll32.exe	cmd.exe
PID 2460 wrote to memory of 3324	2460	rundll32.exe	cmd.exe
PID 2460 wrote to memory of 3324	2460	rundll32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:896

C:\Users\Admin\AppData\Local\Temp\proformafaktura.exe
"C:\Users\Admin\AppData\Local\Temp\proformafaktura.exe"
2⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1532

C:\Users\Admin\AppData\Local\Temp\proformafaktura.exe
"C:\Users\Admin\AppData\Local\Temp\proformafaktura.exe"
3⤵
PID:1900

C:\Users\Admin\AppData\Local\Temp\proformafaktura.exe
"C:\Users\Admin\AppData\Local\Temp\proformafaktura.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2388

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:1884

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:2460

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\proformafaktura.exe"
3⤵
PID:3324

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:3964

Network

MITRE ATT&CK Matrix

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Downloads

memory/896-139-0x0000000008DA0000-0x0000000008F48000-memory.dmp

Filesize
1.7MB

Download
memory/896-147-0x0000000008590000-0x000000000867A000-memory.dmp

Filesize
936KB

Download
memory/1532-134-0x0000000000CC0000-0x0000000000CC3000-memory.dmp

Filesize
12KB

Download
memory/1532-133-0x0000000000B30000-0x0000000000B5D000-memory.dmp

Filesize
180KB

Download
memory/2388-136-0x0000000001B60000-0x0000000001EAA000-memory.dmp

Filesize
3.3MB

Download
memory/2388-138-0x0000000002060000-0x0000000002074000-memory.dmp

Filesize
80KB

Download
memory/2388-137-0x000000000041E000-0x000000000041F000-memory.dmp

Filesize
4KB

Download
memory/2388-135-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2460-140-0x0000000000DF0000-0x0000000000E04000-memory.dmp

Filesize
80KB

Download
memory/2460-141-0x0000000000870000-0x000000000089D000-memory.dmp

Filesize
180KB

Download
memory/2460-142-0x0000000002910000-0x0000000002C5A000-memory.dmp

Filesize
3.3MB

Download
memory/2460-146-0x0000000002720000-0x00000000027B3000-memory.dmp

Filesize
588KB

Download
memory/3964-143-0x000001E4DEF20000-0x000001E4DEF30000-memory.dmp

Filesize
64KB

Download
memory/3964-144-0x000001E4DEF80000-0x000001E4DEF90000-memory.dmp

Filesize
64KB

Download
memory/3964-145-0x000001E4E1630000-0x000001E4E1634000-memory.dmp

Filesize
16KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads