formbook | a6a9a1b63360b3ea785f6de90cdd09f12063ad19d218c25a18d6ac0b31ca0de9

Analysis

max time kernel
147s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-11-2024 20:01

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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 discovery 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
Formbook family
formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
Xloader family
xloader

Xloader payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2284-6-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/2284-11-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/3596-19-0x0000000000C30000-0x0000000000C5C000-memory.dmp	xloader
behavioral2/memory/3596-21-0x0000000000C30000-0x0000000000C5C000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1752 set thread context of 2284	1752	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	82
PID 2284 set thread context of 3416	2284	CasPol.exe	56
PID 3596 set thread context of 3416	3596	msiexec.exe	56

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1752	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe
1752	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe
2284	CasPol.exe
2284	CasPol.exe
2284	CasPol.exe
2284	CasPol.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe
3596	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2284	CasPol.exe
2284	CasPol.exe
2284	CasPol.exe
3596	msiexec.exe
3596	msiexec.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1752	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe
Token: SeDebugPrivilege	2284	CasPol.exe
Token: SeDebugPrivilege	3596	msiexec.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 2284	1752	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	82
PID 1752 wrote to memory of 2284	1752	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	82
PID 1752 wrote to memory of 2284	1752	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	82
PID 1752 wrote to memory of 2284	1752	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	82
PID 1752 wrote to memory of 2284	1752	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	82
PID 1752 wrote to memory of 2284	1752	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	82
PID 3416 wrote to memory of 3596	3416	Explorer.EXE	83
PID 3416 wrote to memory of 3596	3416	Explorer.EXE	83
PID 3416 wrote to memory of 3596	3416	Explorer.EXE	83
PID 3596 wrote to memory of 3384	3596	msiexec.exe	88
PID 3596 wrote to memory of 3384	3596	msiexec.exe	88
PID 3596 wrote to memory of 3384	3596	msiexec.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3416
- 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:1752
- - 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:2284
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3596
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3384

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1752-8-0x00007FF9DB8B0000-0x00007FF9DC371000-memory.dmp

Filesize
10.8MB

Download
memory/1752-1-0x00000193F0120000-0x00000193F0190000-memory.dmp

Filesize
448KB

Download
memory/1752-2-0x00000193F1F90000-0x00000193F2006000-memory.dmp

Filesize
472KB

Download
memory/1752-3-0x00000193F0520000-0x00000193F058E000-memory.dmp

Filesize
440KB

Download
memory/1752-4-0x00000193F05D0000-0x00000193F05EE000-memory.dmp

Filesize
120KB

Download
memory/1752-5-0x00007FF9DB8B0000-0x00007FF9DC371000-memory.dmp

Filesize
10.8MB

Download
memory/1752-0-0x00007FF9DB8B3000-0x00007FF9DB8B5000-memory.dmp

Filesize
8KB

Download
memory/2284-11-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2284-12-0x0000000001D00000-0x0000000001D11000-memory.dmp

Filesize
68KB

Download
memory/2284-6-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2284-9-0x0000000001990000-0x0000000001CDA000-memory.dmp

Filesize
3.3MB

Download
memory/3416-22-0x0000000007F50000-0x00000000080FC000-memory.dmp

Filesize
1.7MB

Download
memory/3416-13-0x0000000007F50000-0x00000000080FC000-memory.dmp

Filesize
1.7MB

Download
memory/3416-28-0x00000000028D0000-0x00000000029FA000-memory.dmp

Filesize
1.2MB

Download
memory/3416-27-0x00000000028D0000-0x00000000029FA000-memory.dmp

Filesize
1.2MB

Download
memory/3596-18-0x00000000001C0000-0x00000000001D2000-memory.dmp

Filesize
72KB

Download
memory/3596-20-0x0000000002AE0000-0x0000000002E2A000-memory.dmp

Filesize
3.3MB

Download
memory/3596-21-0x0000000000C30000-0x0000000000C5C000-memory.dmp

Filesize
176KB

Download
memory/3596-19-0x0000000000C30000-0x0000000000C5C000-memory.dmp

Filesize
176KB

Download
memory/3596-23-0x0000000002940000-0x00000000029D0000-memory.dmp

Filesize
576KB

Download
memory/3596-16-0x00000000001C0000-0x00000000001D2000-memory.dmp

Filesize
72KB

Download
memory/3596-14-0x00000000001C0000-0x00000000001D2000-memory.dmp

Filesize
72KB

Download