formbook | 661eda3234e1b3b497701920414c03108188d4e4cadc8a3de7dbda17753c9e09

General

Target

doc001876543456781987651000_pdf .exe
Size

857KB
MD5

862a815ffdf58d6c2ae62a2948658e74
SHA1

df09b761005eba5e45cc3c1503cf2761077d4c49
SHA256

c40018a8c58d463f829a97d5c5280c2b5292573cbd321f042e7225db4bff6d95
SHA512

95a79ac52b0b36b4232fdd7a49dca9dfd1be0ae5bc9ae98020e4150e8c8d5859103cf8a7d07773f86ee1841939817022071f46e7893c09826ff204ceab690099
SSDEEP

12288:L2/pKmJAagHvRnAmqgc/SdORHmV1ujAcV0szEZbnRQuNbNhPDDSXG:L2/pL+RvCT/SoRHmKgszEZNZH4G

Score

10^/10

formbook xloader b6qc loader persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

b6qc

Decoy

etofood.com

bigtimberroofingnc.com

jacque.doctor

9588uy.site

nosceremonies-lefilm.com

xposetattoosjaipur.com

universalwebbinq.com

klthealthfrancesarl.com

tinyhome.deals

neroivr.com

floridaappeals.net

vladartsmith.com

chatbothealthcare.com

akutansi.online

appointmentcart.com

vertue.xyz

healthplanslakeland.com

es-verification.biz

thatsod.com

521ini.xyz

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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4540-139-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/4540-145-0x0000000000400000-0x000000000042B000-memory.dmp	xloader
behavioral2/memory/1432-147-0x0000000000970000-0x000000000099B000-memory.dmp	xloader
behavioral2/memory/1432-152-0x0000000000970000-0x000000000099B000-memory.dmp	xloader

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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmmon32.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	cmmon32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\P6QL-6KP7V = "C:\\Program Files (x86)\\Blbcd3za\\fzcjtzhl.exe"	cmmon32.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

doc001876543456781987651000_pdf .exedoc001876543456781987651000_pdf .execmmon32.exe

description	pid	process	target process
PID 1652 set thread context of 4540	1652	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 4540 set thread context of 2056	4540	doc001876543456781987651000_pdf .exe	Explorer.EXE
PID 1432 set thread context of 2056	1432	cmmon32.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cmmon32.exe

description ioc process

File opened for modification C:\Program Files (x86)\Blbcd3za\fzcjtzhl.exe cmmon32.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Blbcd3za\fzcjtzhl.exe	cmmon32.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmmon32.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmmon32.exe

Suspicious behavior: EnumeratesProcesses 40 IoCs

Processes:

doc001876543456781987651000_pdf .execmmon32.exe

pid	process
4540	doc001876543456781987651000_pdf .exe
4540	doc001876543456781987651000_pdf .exe
4540	doc001876543456781987651000_pdf .exe
4540	doc001876543456781987651000_pdf .exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2056 Explorer.EXE

pid	process
2056	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

doc001876543456781987651000_pdf .execmmon32.exe

pid	process
4540	doc001876543456781987651000_pdf .exe
4540	doc001876543456781987651000_pdf .exe
4540	doc001876543456781987651000_pdf .exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe
1432	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

doc001876543456781987651000_pdf .execmmon32.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	4540	doc001876543456781987651000_pdf .exe
Token: SeDebugPrivilege	1432	cmmon32.exe
Token: SeShutdownPrivilege	2056	Explorer.EXE
Token: SeCreatePagefilePrivilege	2056	Explorer.EXE
Token: SeShutdownPrivilege	2056	Explorer.EXE
Token: SeCreatePagefilePrivilege	2056	Explorer.EXE
Token: SeShutdownPrivilege	2056	Explorer.EXE
Token: SeCreatePagefilePrivilege	2056	Explorer.EXE
Token: SeShutdownPrivilege	2056	Explorer.EXE
Token: SeCreatePagefilePrivilege	2056	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

doc001876543456781987651000_pdf .exeExplorer.EXEcmmon32.exe

description	pid	process	target process
PID 1652 wrote to memory of 4540	1652	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 1652 wrote to memory of 4540	1652	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 1652 wrote to memory of 4540	1652	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 1652 wrote to memory of 4540	1652	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 1652 wrote to memory of 4540	1652	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 1652 wrote to memory of 4540	1652	doc001876543456781987651000_pdf .exe	doc001876543456781987651000_pdf .exe
PID 2056 wrote to memory of 1432	2056	Explorer.EXE	cmmon32.exe
PID 2056 wrote to memory of 1432	2056	Explorer.EXE	cmmon32.exe
PID 2056 wrote to memory of 1432	2056	Explorer.EXE	cmmon32.exe
PID 1432 wrote to memory of 828	1432	cmmon32.exe	cmd.exe
PID 1432 wrote to memory of 828	1432	cmmon32.exe	cmd.exe
PID 1432 wrote to memory of 828	1432	cmmon32.exe	cmd.exe
PID 1432 wrote to memory of 4716	1432	cmmon32.exe	cmd.exe
PID 1432 wrote to memory of 4716	1432	cmmon32.exe	cmd.exe
PID 1432 wrote to memory of 4716	1432	cmmon32.exe	cmd.exe
PID 1432 wrote to memory of 1840	1432	cmmon32.exe	cmd.exe
PID 1432 wrote to memory of 1840	1432	cmmon32.exe	cmd.exe
PID 1432 wrote to memory of 1840	1432	cmmon32.exe	cmd.exe
PID 1432 wrote to memory of 4092	1432	cmmon32.exe	Firefox.exe
PID 1432 wrote to memory of 4092	1432	cmmon32.exe	Firefox.exe
PID 1432 wrote to memory of 4092	1432	cmmon32.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2056

C:\Users\Admin\AppData\Local\Temp\doc001876543456781987651000_pdf .exe
"C:\Users\Admin\AppData\Local\Temp\doc001876543456781987651000_pdf .exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1652

C:\Users\Admin\AppData\Local\Temp\doc001876543456781987651000_pdf .exe
"C:\Users\Admin\AppData\Local\Temp\doc001876543456781987651000_pdf .exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4540

C:\Windows\SysWOW64\cmmon32.exe
"C:\Windows\SysWOW64\cmmon32.exe"
2⤵
- Adds 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
PID:1432

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\doc001876543456781987651000_pdf .exe"
3⤵
PID:828

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:4716

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:1840

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4092

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

2

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:\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/828-148-0x0000000000000000-mapping.dmp

Download
memory/1432-150-0x00000000029A0000-0x0000000002A30000-memory.dmp

Filesize
576KB

Download
memory/1432-152-0x0000000000970000-0x000000000099B000-memory.dmp

Filesize
172KB

Download
memory/1432-144-0x0000000000000000-mapping.dmp

Download
memory/1432-149-0x0000000002A80000-0x0000000002DCA000-memory.dmp

Filesize
3.3MB

Download
memory/1432-147-0x0000000000970000-0x000000000099B000-memory.dmp

Filesize
172KB

Download
memory/1432-146-0x00000000006C0000-0x00000000006CC000-memory.dmp

Filesize
48KB

Download
memory/1652-136-0x00000000086A0000-0x000000000873C000-memory.dmp

Filesize
624KB

Download
memory/1652-137-0x0000000008960000-0x00000000089C6000-memory.dmp

Filesize
408KB

Download
memory/1652-135-0x00000000053E0000-0x00000000053EA000-memory.dmp

Filesize
40KB

Download
memory/1652-134-0x0000000004E90000-0x0000000004F22000-memory.dmp

Filesize
584KB

Download
memory/1652-132-0x00000000003B0000-0x000000000048C000-memory.dmp

Filesize
880KB

Download
memory/1652-133-0x0000000005440000-0x00000000059E4000-memory.dmp

Filesize
5.6MB

Download
memory/1840-161-0x0000000000000000-mapping.dmp

Download
memory/2056-157-0x0000000002390000-0x00000000023A0000-memory.dmp

Filesize
64KB

Download
memory/2056-158-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

Download
memory/2056-151-0x0000000002D00000-0x0000000002DB1000-memory.dmp

Filesize
708KB

Download
memory/2056-143-0x0000000008130000-0x0000000008266000-memory.dmp

Filesize
1.2MB

Download
memory/2056-153-0x0000000002D00000-0x0000000002DB1000-memory.dmp

Filesize
708KB

Download
memory/2056-154-0x0000000002470000-0x0000000002480000-memory.dmp

Filesize
64KB

Download
memory/2056-155-0x0000000002390000-0x00000000023A0000-memory.dmp

Filesize
64KB

Download
memory/2056-156-0x00000000023A0000-0x00000000023B0000-memory.dmp

Filesize
64KB

Download
memory/2056-166-0x00000000028D0000-0x00000000028E0000-memory.dmp

Filesize
64KB

Download
memory/2056-165-0x00000000028D0000-0x00000000028E0000-memory.dmp

Filesize
64KB

Download
memory/2056-164-0x0000000002460000-0x0000000002470000-memory.dmp

Filesize
64KB

Download
memory/2056-163-0x0000000002470000-0x0000000002480000-memory.dmp

Filesize
64KB

Download
memory/4540-139-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4540-138-0x0000000000000000-mapping.dmp

Download
memory/4540-141-0x0000000001060000-0x00000000013AA000-memory.dmp

Filesize
3.3MB

Download
memory/4540-145-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4540-142-0x0000000000FF0000-0x0000000001001000-memory.dmp

Filesize
68KB

Download
memory/4716-159-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads