formbook | b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004

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 persistence 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/2220-136-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/2220-137-0x000000000041F6F0-mapping.dmp	xloader
behavioral2/memory/2220-144-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/812-147-0x0000000001340000-0x000000000136C000-memory.dmp	xloader
behavioral2/memory/812-151-0x0000000001340000-0x000000000136C000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	wscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\1BJ8KZIX = "C:\\Program Files (x86)\\Qjzuxynj0\\msxftlft.exe"	wscript.exe

Executes dropped EXE 1 IoCs

Processes:

msxftlft.exe

pid process

4316 msxftlft.exe
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

pid	process
4316	msxftlft.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exeCasPol.exewscript.exe

description	pid	process	target process
PID 5040 set thread context of 2220	5040	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 2220 set thread context of 760	2220	CasPol.exe	Explorer.EXE
PID 812 set thread context of 760	812	wscript.exe	Explorer.EXE

Drops file in Program Files directory 4 IoCs

Processes:

wscript.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Qjzuxynj0\msxftlft.exe	wscript.exe
File opened for modification	C:\Program Files (x86)\Qjzuxynj0	Explorer.EXE
File created	C:\Program Files (x86)\Qjzuxynj0\msxftlft.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Qjzuxynj0\msxftlft.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wscript.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

Processes:

b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exeCasPol.exewscript.exe

pid	process
5040	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe
5040	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe
2220	CasPol.exe
2220	CasPol.exe
2220	CasPol.exe
2220	CasPol.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

760 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

CasPol.exewscript.exe

pid process

2220 CasPol.exe
2220 CasPol.exe
2220 CasPol.exe
812 wscript.exe
812 wscript.exe
812 wscript.exe
812 wscript.exe

pid	process
760	Explorer.EXE

pid	process
2220	CasPol.exe
2220	CasPol.exe
2220	CasPol.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe
812	wscript.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exeCasPol.exewscript.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	5040	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe
Token: SeDebugPrivilege	2220	CasPol.exe
Token: SeDebugPrivilege	812	wscript.exe
Token: SeShutdownPrivilege	760	Explorer.EXE
Token: SeCreatePagefilePrivilege	760	Explorer.EXE
Token: SeShutdownPrivilege	760	Explorer.EXE
Token: SeCreatePagefilePrivilege	760	Explorer.EXE
Token: SeShutdownPrivilege	760	Explorer.EXE
Token: SeCreatePagefilePrivilege	760	Explorer.EXE
Token: SeShutdownPrivilege	760	Explorer.EXE
Token: SeCreatePagefilePrivilege	760	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 5040 wrote to memory of 2220	5040	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 5040 wrote to memory of 2220	5040	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 5040 wrote to memory of 2220	5040	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 5040 wrote to memory of 2220	5040	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 5040 wrote to memory of 2220	5040	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 5040 wrote to memory of 2220	5040	b08be63af3754f6970336f0f5c751271233d253f0195d2ed8293e50679c18004.exe	CasPol.exe
PID 760 wrote to memory of 812	760	Explorer.EXE	wscript.exe
PID 760 wrote to memory of 812	760	Explorer.EXE	wscript.exe
PID 760 wrote to memory of 812	760	Explorer.EXE	wscript.exe
PID 812 wrote to memory of 724	812	wscript.exe	cmd.exe
PID 812 wrote to memory of 724	812	wscript.exe	cmd.exe
PID 812 wrote to memory of 724	812	wscript.exe	cmd.exe
PID 812 wrote to memory of 4484	812	wscript.exe	cmd.exe
PID 812 wrote to memory of 4484	812	wscript.exe	cmd.exe
PID 812 wrote to memory of 4484	812	wscript.exe	cmd.exe
PID 812 wrote to memory of 3796	812	wscript.exe	cmd.exe
PID 812 wrote to memory of 3796	812	wscript.exe	cmd.exe
PID 812 wrote to memory of 3796	812	wscript.exe	cmd.exe
PID 812 wrote to memory of 4076	812	wscript.exe	Firefox.exe
PID 812 wrote to memory of 4076	812	wscript.exe	Firefox.exe
PID 812 wrote to memory of 4076	812	wscript.exe	Firefox.exe
PID 760 wrote to memory of 4316	760	Explorer.EXE	msxftlft.exe
PID 760 wrote to memory of 4316	760	Explorer.EXE	msxftlft.exe
PID 760 wrote to memory of 4316	760	Explorer.EXE	msxftlft.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

wscript.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer wscript.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	wscript.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:760

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:5040

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:2220

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:812

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\CasPol.exe"
3⤵
PID:724

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:4484

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:3796

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4076

C:\Program Files (x86)\Qjzuxynj0\msxftlft.exe
"C:\Program Files (x86)\Qjzuxynj0\msxftlft.exe"
2⤵
- Executes dropped EXE
PID:4316

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Program Files (x86)\Qjzuxynj0\msxftlft.exe
Filesize
106KB

MD5
914f728c04d3eddd5fba59420e74e56b

SHA1
8c68ca3f013c490161c0156ef359af03594ae5e2

SHA256
7d3bdb5b7ee9685c7c18c0c3272da2a593f6c5c326f1ea67f22aae27c57ba1e6

SHA512
d7e49b361544ba22a0c66cf097e9d84db4f3759fbcc20386251caac6da80c591861c1468cb7a102eee1a1f86c974086ebc61de4027f9cd22ad06d63550400d6d

Download Submit
C:\Program Files (x86)\Qjzuxynj0\msxftlft.exe
Filesize
106KB

MD5
914f728c04d3eddd5fba59420e74e56b

SHA1
8c68ca3f013c490161c0156ef359af03594ae5e2

SHA256
7d3bdb5b7ee9685c7c18c0c3272da2a593f6c5c326f1ea67f22aae27c57ba1e6

SHA512
d7e49b361544ba22a0c66cf097e9d84db4f3759fbcc20386251caac6da80c591861c1468cb7a102eee1a1f86c974086ebc61de4027f9cd22ad06d63550400d6d

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

Download Submit
memory/724-145-0x0000000000000000-mapping.dmp

Download
memory/760-142-0x0000000002C10000-0x0000000002D05000-memory.dmp

Filesize
980KB

Download
memory/760-152-0x0000000002A90000-0x0000000002B45000-memory.dmp

Filesize
724KB

Download
memory/760-150-0x0000000002A90000-0x0000000002B45000-memory.dmp

Filesize
724KB

Download
memory/812-148-0x00000000034F0000-0x000000000383A000-memory.dmp

Filesize
3.3MB

Download
memory/812-146-0x0000000000860000-0x0000000000887000-memory.dmp

Filesize
156KB

Download
memory/812-143-0x0000000000000000-mapping.dmp

Download
memory/812-151-0x0000000001340000-0x000000000136C000-memory.dmp

Filesize
176KB

Download
memory/812-149-0x0000000003320000-0x00000000033B0000-memory.dmp

Filesize
576KB

Download
memory/812-147-0x0000000001340000-0x000000000136C000-memory.dmp

Filesize
176KB

Download
memory/2220-136-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2220-141-0x0000000001560000-0x0000000001571000-memory.dmp

Filesize
68KB

Download
memory/2220-139-0x0000000001650000-0x000000000199A000-memory.dmp

Filesize
3.3MB

Download
memory/2220-137-0x000000000041F6F0-mapping.dmp

Download
memory/2220-144-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/3796-155-0x0000000000000000-mapping.dmp

Download
memory/4316-157-0x0000000000000000-mapping.dmp

Download
memory/4316-160-0x0000000000BF0000-0x0000000000C0C000-memory.dmp

Filesize
112KB

Download
memory/4484-153-0x0000000000000000-mapping.dmp

Download
memory/5040-138-0x00007FFF7B920000-0x00007FFF7C3E1000-memory.dmp

Filesize
10.8MB

Download
memory/5040-132-0x0000024B20490000-0x0000024B20500000-memory.dmp

Filesize
448KB

Download
memory/5040-135-0x00007FFF7B920000-0x00007FFF7C3E1000-memory.dmp

Filesize
10.8MB

Download
memory/5040-134-0x0000024B20840000-0x0000024B2085E000-memory.dmp

Filesize
120KB

Download
memory/5040-133-0x0000024B3B5B0000-0x0000024B3B626000-memory.dmp

Filesize
472KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads