formbook | a6a9a1b63360b3ea785f6de90cdd09f12063ad19d218c25a18d6ac0b31ca0de9

General

Target

b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe
Size

432KB
MD5

e807bcfa922ddd60a6c8e85c441c576b
SHA1

f2a2cafc8f9efe1b5d49bcf3cadedc87ea416dac
SHA256

b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004
SHA512

6da74e49eaac931a22cfbf33851b5f450c067d445a7434fb4a703db85df55830f8ca046c03418fd4ddc9227a62fbf726805a6fb5ddf39647380633771b8fcfac
SSDEEP

12288:n+jAiWbrrhAIrzN4f/Q1EZB6bi+pOaWeeJjTJ:+A1zN4nQaZB3xewTJ

Score

10^/10

formbook xloader zzun loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

zzun

Decoy

JnNtRHyNupy0GqRzAcasu7hb4rc=

Qv593NGLE7p9UNSaVkPXljAJm2QCNnc=

ePArIFWvjkkMgVEVhw4M4Jk=

26rqUwJ7dD0AiDI=

pBAxMHeK741QFw==

kHD7TPt5846pUMTX

56UnjFjHL1i0j659h3LymRnHpQj+SshC

4vKlKHflPqmWXRbrRwfPtrhb4rc=

6LBd4qButFAi

phMzGll8Ue7Fu+inq5cdnPaSugG3

NKswiQGCvZoG5FgsdHEI

rtTHnuUY8M1qVcXV

SOmECrlAt2oGAA==

L1ep9adutFAi

/UE+/AyvE6uEl28weFI=

IP+xMPQxJR4NE6TK

xvW5GN9/rqA5YUoOVt185Sf7Uw==

fRFNW9DhxL6VF7LA

KFYTfkaY741QFw==

W4JGvMBmt2oGAA==

Extracted

Family

xloader

Version

2.9

Campaign

zzun

Decoy

JnNtRHyNupy0GqRzAcasu7hb4rc=

Qv593NGLE7p9UNSaVkPXljAJm2QCNnc=

ePArIFWvjkkMgVEVhw4M4Jk=

26rqUwJ7dD0AiDI=

pBAxMHeK741QFw==

kHD7TPt5846pUMTX

56UnjFjHL1i0j659h3LymRnHpQj+SshC

4vKlKHflPqmWXRbrRwfPtrhb4rc=

6LBd4qButFAi

phMzGll8Ue7Fu+inq5cdnPaSugG3

NKswiQGCvZoG5FgsdHEI

rtTHnuUY8M1qVcXV

SOmECrlAt2oGAA==

L1ep9adutFAi

/UE+/AyvE6uEl28weFI=

IP+xMPQxJR4NE6TK

xvW5GN9/rqA5YUoOVt185Sf7Uw==

fRFNW9DhxL6VF7LA

KFYTfkaY741QFw==

W4JGvMBmt2oGAA==

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3504-136-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/3504-137-0x000000000041F6F0-mapping.dmp	xloader
behavioral2/memory/3504-144-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/2156-147-0x0000000000640000-0x000000000066C000-memory.dmp	xloader
behavioral2/memory/2156-151-0x0000000000640000-0x000000000066C000-memory.dmp	xloader

Blocklisted process makes network request 3 IoCs

Processes:

rundll32.exe

flow pid process

59 2156 rundll32.exe
71 2156 rundll32.exe
83 2156 rundll32.exe

flow	pid	process
59	2156	rundll32.exe
71	2156	rundll32.exe
83	2156	rundll32.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exeCasPol.exerundll32.exe

description	pid	process	target process
PID 3640 set thread context of 3504	3640	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 3504 set thread context of 1084	3504	CasPol.exe	Explorer.EXE
PID 2156 set thread context of 1084	2156	rundll32.exe	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 56 IoCs

Processes:

b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exeCasPol.exerundll32.exe

pid	process
3640	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe
3640	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe
3504	CasPol.exe
3504	CasPol.exe
3504	CasPol.exe
3504	CasPol.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe
2156	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1084 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

CasPol.exerundll32.exe

pid process

3504 CasPol.exe
3504 CasPol.exe
3504 CasPol.exe
2156 rundll32.exe
2156 rundll32.exe

pid	process
1084	Explorer.EXE

pid	process
3504	CasPol.exe
3504	CasPol.exe
3504	CasPol.exe
2156	rundll32.exe
2156	rundll32.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exeCasPol.exerundll32.exe

description	pid	process
Token: SeDebugPrivilege	3640	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe
Token: SeDebugPrivilege	3504	CasPol.exe
Token: SeDebugPrivilege	2156	rundll32.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exeExplorer.EXErundll32.exe

description	pid	process	target process
PID 3640 wrote to memory of 3504	3640	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 3640 wrote to memory of 3504	3640	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 3640 wrote to memory of 3504	3640	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 3640 wrote to memory of 3504	3640	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 3640 wrote to memory of 3504	3640	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 3640 wrote to memory of 3504	3640	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 1084 wrote to memory of 2156	1084	Explorer.EXE	rundll32.exe
PID 1084 wrote to memory of 2156	1084	Explorer.EXE	rundll32.exe
PID 1084 wrote to memory of 2156	1084	Explorer.EXE	rundll32.exe
PID 2156 wrote to memory of 948	2156	rundll32.exe	cmd.exe
PID 2156 wrote to memory of 948	2156	rundll32.exe	cmd.exe
PID 2156 wrote to memory of 948	2156	rundll32.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1084

C:\Users\Admin\AppData\Local\Temp\b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe
"C:\Users\Admin\AppData\Local\Temp\b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3640

C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3504

C:\Windows\SysWOW64\rundll32.exe
"C:\Windows\SysWOW64\rundll32.exe"
2⤵
- Blocklisted process makes network request
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2156

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
3⤵
PID:948

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/948-145-0x0000000000000000-mapping.dmp

Download
memory/1084-142-0x0000000008220000-0x00000000083A6000-memory.dmp

Filesize
1.5MB

Download
memory/1084-152-0x0000000008450000-0x00000000085E0000-memory.dmp

Filesize
1.6MB

Download
memory/1084-150-0x0000000008450000-0x00000000085E0000-memory.dmp

Filesize
1.6MB

Download
memory/2156-148-0x0000000002680000-0x00000000029CA000-memory.dmp

Filesize
3.3MB

Download
memory/2156-143-0x0000000000000000-mapping.dmp

Download
memory/2156-151-0x0000000000640000-0x000000000066C000-memory.dmp

Filesize
176KB

Download
memory/2156-149-0x00000000023B0000-0x0000000002440000-memory.dmp

Filesize
576KB

Download
memory/2156-147-0x0000000000640000-0x000000000066C000-memory.dmp

Filesize
176KB

Download
memory/2156-146-0x00000000007D0000-0x00000000007E4000-memory.dmp

Filesize
80KB

Download
memory/3504-141-0x0000000001600000-0x0000000001611000-memory.dmp

Filesize
68KB

Download
memory/3504-144-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3504-136-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3504-137-0x000000000041F6F0-mapping.dmp

Download
memory/3504-140-0x00000000016A0000-0x00000000019EA000-memory.dmp

Filesize
3.3MB

Download
memory/3640-135-0x00007FFECF8C0000-0x00007FFED0381000-memory.dmp

Filesize
10.8MB

Download
memory/3640-132-0x0000023EE2DB0000-0x0000023EE2E20000-memory.dmp

Filesize
448KB

Download
memory/3640-134-0x0000023EE31D0000-0x0000023EE31EE000-memory.dmp

Filesize
120KB

Download
memory/3640-138-0x00007FFECF8C0000-0x00007FFED0381000-memory.dmp

Filesize
10.8MB

Download
memory/3640-133-0x0000023EE3200000-0x0000023EE3276000-memory.dmp

Filesize
472KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads