formbook | cd4ee025ad3406b7e572952d42465eee19649cef6c0d3a6acbb0e972096988f4

General

Target

DELIVERY DOCUMENTS.exe
Size

707KB
MD5

427ef5f4e1143ad34c33b26dc4681661
SHA1

673fb1a58e4707ad783d03ca97b3fbd8b4cad73a
SHA256

cd4ee025ad3406b7e572952d42465eee19649cef6c0d3a6acbb0e972096988f4
SHA512

b225afbb07853516f1b741e833e1a63026c0dc5adbb0c3fcfb48f8c6681bc770558499df3d3f5c17df45395dedc3624a1e8fa6498395ac20a82f44e27a61dfbb

Score

10^/10

formbook xloader zqzw loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

zqzw

Decoy

laurentmathieu.com

nohohonndana.com

hhmc.info

shophallows.com

blazebunk.com

goodbridge.xyz

flakycloud.com

bakermckenziegroups.com

formation-adistance.com

lovingearthbotanicals.com

tbrservice.plus

heritagehousehotels.com

drwbuildersco.com

lacsghb.com

wain3x.com

dadreview.club

continiutycp.com

cockgirls.com

48mpt.xyz

033skz.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
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/656-62-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/656-64-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral1/memory/1636-74-0x0000000000080000-0x00000000000A9000-memory.dmp	xloader

Blocklisted process makes network request 3 IoCs

Processes:

cmd.exe

flow pid process

71 1636 cmd.exe
257 1636 cmd.exe
274 1636 cmd.exe
Executes dropped EXE 2 IoCs

Processes:

mfcbnr.exemfcbnr.exe

pid process

524 mfcbnr.exe
1484 mfcbnr.exe
Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1152 cmd.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

flow	pid	process
71	1636	cmd.exe
257	1636	cmd.exe
274	1636	cmd.exe

pid	process
524	mfcbnr.exe
1484	mfcbnr.exe

pid	process
1152	cmd.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	cmd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\6L3DUFW8 = "C:\\Program Files (x86)\\Iong4l2e\\mfcbnr.exe"	cmd.exe

Suspicious use of SetThreadContext 5 IoCs

Processes:

DELIVERY DOCUMENTS.exeDELIVERY DOCUMENTS.execmd.exemfcbnr.exe

description	pid	process	target process
PID 1588 set thread context of 656	1588	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 656 set thread context of 1260	656	DELIVERY DOCUMENTS.exe	Explorer.EXE
PID 656 set thread context of 1260	656	DELIVERY DOCUMENTS.exe	Explorer.EXE
PID 1636 set thread context of 1260	1636	cmd.exe	Explorer.EXE
PID 524 set thread context of 1484	524	mfcbnr.exe	mfcbnr.exe

Drops file in Program Files directory 2 IoCs

Processes:

cmd.exeExplorer.EXE

description	ioc	process
File opened for modification	C:\Program Files (x86)\Iong4l2e\mfcbnr.exe	cmd.exe
File created	C:\Program Files (x86)\Iong4l2e\mfcbnr.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2329389628-4064185017-3901522362-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmd.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

DELIVERY DOCUMENTS.execmd.exe

pid	process
656	DELIVERY DOCUMENTS.exe
656	DELIVERY DOCUMENTS.exe
656	DELIVERY DOCUMENTS.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE

pid	process
1260	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

DELIVERY DOCUMENTS.execmd.exe

pid	process
656	DELIVERY DOCUMENTS.exe
656	DELIVERY DOCUMENTS.exe
656	DELIVERY DOCUMENTS.exe
656	DELIVERY DOCUMENTS.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe
1636	cmd.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

Processes:

DELIVERY DOCUMENTS.execmd.exeExplorer.EXEmfcbnr.exe

description	pid	process
Token: SeDebugPrivilege	656	DELIVERY DOCUMENTS.exe
Token: SeDebugPrivilege	1636	cmd.exe
Token: SeShutdownPrivilege	1260	Explorer.EXE
Token: SeDebugPrivilege	1484	mfcbnr.exe
Token: SeShutdownPrivilege	1260	Explorer.EXE
Token: SeShutdownPrivilege	1260	Explorer.EXE
Token: SeShutdownPrivilege	1260	Explorer.EXE
Token: SeShutdownPrivilege	1260	Explorer.EXE
Token: SeShutdownPrivilege	1260	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE
1260 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE
1260 Explorer.EXE

pid	process
1260	Explorer.EXE
1260	Explorer.EXE

pid	process
1260	Explorer.EXE
1260	Explorer.EXE

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

DELIVERY DOCUMENTS.exeExplorer.EXEcmd.exemfcbnr.exe

description	pid	process	target process
PID 1588 wrote to memory of 656	1588	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 1588 wrote to memory of 656	1588	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 1588 wrote to memory of 656	1588	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 1588 wrote to memory of 656	1588	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 1588 wrote to memory of 656	1588	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 1588 wrote to memory of 656	1588	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 1588 wrote to memory of 656	1588	DELIVERY DOCUMENTS.exe	DELIVERY DOCUMENTS.exe
PID 1260 wrote to memory of 1636	1260	Explorer.EXE	cmd.exe
PID 1260 wrote to memory of 1636	1260	Explorer.EXE	cmd.exe
PID 1260 wrote to memory of 1636	1260	Explorer.EXE	cmd.exe
PID 1260 wrote to memory of 1636	1260	Explorer.EXE	cmd.exe
PID 1636 wrote to memory of 1152	1636	cmd.exe	cmd.exe
PID 1636 wrote to memory of 1152	1636	cmd.exe	cmd.exe
PID 1636 wrote to memory of 1152	1636	cmd.exe	cmd.exe
PID 1636 wrote to memory of 1152	1636	cmd.exe	cmd.exe
PID 1636 wrote to memory of 1624	1636	cmd.exe	Firefox.exe
PID 1636 wrote to memory of 1624	1636	cmd.exe	Firefox.exe
PID 1636 wrote to memory of 1624	1636	cmd.exe	Firefox.exe
PID 1636 wrote to memory of 1624	1636	cmd.exe	Firefox.exe
PID 1260 wrote to memory of 524	1260	Explorer.EXE	mfcbnr.exe
PID 1260 wrote to memory of 524	1260	Explorer.EXE	mfcbnr.exe
PID 1260 wrote to memory of 524	1260	Explorer.EXE	mfcbnr.exe
PID 1260 wrote to memory of 524	1260	Explorer.EXE	mfcbnr.exe
PID 1636 wrote to memory of 1624	1636	cmd.exe	Firefox.exe
PID 524 wrote to memory of 1484	524	mfcbnr.exe	mfcbnr.exe
PID 524 wrote to memory of 1484	524	mfcbnr.exe	mfcbnr.exe
PID 524 wrote to memory of 1484	524	mfcbnr.exe	mfcbnr.exe
PID 524 wrote to memory of 1484	524	mfcbnr.exe	mfcbnr.exe
PID 524 wrote to memory of 1484	524	mfcbnr.exe	mfcbnr.exe
PID 524 wrote to memory of 1484	524	mfcbnr.exe	mfcbnr.exe
PID 524 wrote to memory of 1484	524	mfcbnr.exe	mfcbnr.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 FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1260

C:\Users\Admin\AppData\Local\Temp\DELIVERY DOCUMENTS.exe
"C:\Users\Admin\AppData\Local\Temp\DELIVERY DOCUMENTS.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1588

C:\Users\Admin\AppData\Local\Temp\DELIVERY DOCUMENTS.exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:656

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\SysWOW64\cmd.exe"
2⤵
- Blocklisted process makes network request
- 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:1636

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\DELIVERY DOCUMENTS.exe"
3⤵
- Deletes itself
PID:1152

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1624

C:\Program Files (x86)\Iong4l2e\mfcbnr.exe
"C:\Program Files (x86)\Iong4l2e\mfcbnr.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:524

C:\Program Files (x86)\Iong4l2e\mfcbnr.exe
"{path}"
3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1484

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:\Program Files (x86)\Iong4l2e\mfcbnr.exe
MD5
427ef5f4e1143ad34c33b26dc4681661

SHA1
673fb1a58e4707ad783d03ca97b3fbd8b4cad73a

SHA256
cd4ee025ad3406b7e572952d42465eee19649cef6c0d3a6acbb0e972096988f4

SHA512
b225afbb07853516f1b741e833e1a63026c0dc5adbb0c3fcfb48f8c6681bc770558499df3d3f5c17df45395dedc3624a1e8fa6498395ac20a82f44e27a61dfbb

Download Submit
C:\Program Files (x86)\Iong4l2e\mfcbnr.exe
MD5
427ef5f4e1143ad34c33b26dc4681661

SHA1
673fb1a58e4707ad783d03ca97b3fbd8b4cad73a

SHA256
cd4ee025ad3406b7e572952d42465eee19649cef6c0d3a6acbb0e972096988f4

SHA512
b225afbb07853516f1b741e833e1a63026c0dc5adbb0c3fcfb48f8c6681bc770558499df3d3f5c17df45395dedc3624a1e8fa6498395ac20a82f44e27a61dfbb

Download Submit
C:\Program Files (x86)\Iong4l2e\mfcbnr.exe
MD5
427ef5f4e1143ad34c33b26dc4681661

SHA1
673fb1a58e4707ad783d03ca97b3fbd8b4cad73a

SHA256
cd4ee025ad3406b7e572952d42465eee19649cef6c0d3a6acbb0e972096988f4

SHA512
b225afbb07853516f1b741e833e1a63026c0dc5adbb0c3fcfb48f8c6681bc770558499df3d3f5c17df45395dedc3624a1e8fa6498395ac20a82f44e27a61dfbb

Download Submit
memory/524-82-0x000000007487E000-0x000000007487F000-memory.dmp

Filesize
4KB

Download
memory/524-83-0x0000000004630000-0x0000000004631000-memory.dmp

Filesize
4KB

Download
memory/524-81-0x0000000000180000-0x0000000000238000-memory.dmp

Filesize
736KB

Download
memory/656-70-0x000000000041D000-0x000000000041E000-memory.dmp

Filesize
4KB

Download
memory/656-71-0x00000000002E0000-0x00000000002F1000-memory.dmp

Filesize
68KB

Download
memory/656-62-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/656-64-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/656-65-0x00000000008D0000-0x0000000000BD3000-memory.dmp

Filesize
3.0MB

Download
memory/656-66-0x000000000041D000-0x000000000041E000-memory.dmp

Filesize
4KB

Download
memory/656-67-0x0000000000190000-0x00000000001A1000-memory.dmp

Filesize
68KB

Download
memory/656-60-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/656-61-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/1260-72-0x0000000005010000-0x0000000005150000-memory.dmp

Filesize
1.2MB

Download
memory/1260-77-0x0000000003DF0000-0x0000000003E91000-memory.dmp

Filesize
644KB

Download
memory/1260-68-0x0000000007080000-0x00000000071D9000-memory.dmp

Filesize
1.3MB

Download
memory/1484-88-0x0000000000A60000-0x0000000000D63000-memory.dmp

Filesize
3.0MB

Download
memory/1588-58-0x0000000004C70000-0x0000000004CF2000-memory.dmp

Filesize
520KB

Download
memory/1588-54-0x0000000000C90000-0x0000000000D48000-memory.dmp

Filesize
736KB

Download
memory/1588-55-0x0000000074D9E000-0x0000000074D9F000-memory.dmp

Filesize
4KB

Download
memory/1588-56-0x0000000004DB0000-0x0000000004DB1000-memory.dmp

Filesize
4KB

Download
memory/1588-57-0x0000000000310000-0x000000000031A000-memory.dmp

Filesize
40KB

Download
memory/1588-59-0x0000000000BB0000-0x0000000000BE0000-memory.dmp

Filesize
192KB

Download
memory/1636-74-0x0000000000080000-0x00000000000A9000-memory.dmp

Filesize
164KB

Download
memory/1636-78-0x0000000075DF1000-0x0000000075DF3000-memory.dmp

Filesize
8KB

Download
memory/1636-76-0x0000000001FE0000-0x0000000002070000-memory.dmp

Filesize
576KB

Download
memory/1636-75-0x00000000020E0000-0x00000000023E3000-memory.dmp

Filesize
3.0MB

Download
memory/1636-73-0x000000004AC50000-0x000000004AC9C000-memory.dmp

Filesize
304KB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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