formbook | eb7d6d108c4b7e0a5b92727310d4d7fbeeb5b7d1db42277b88e209c2465b2b9a

General

Target

XLYQSINv1hOt3N4.exe
Size

1.2MB
MD5

1c81b3eb8da296cefba9d12af0673079
SHA1

bb408ca2fc342cc10f40343e7d58d1d3262427bc
SHA256

eb7d6d108c4b7e0a5b92727310d4d7fbeeb5b7d1db42277b88e209c2465b2b9a
SHA512

07a85e9a527a5628d397df78660207953e6bbeb78a38e3572af35bcf5ed02d1985140e460d7b81c50a7fc712d2d1b754651d9d586b1cb5d6b0e9616c9b9ef0dc

Score

10^/10

formbook xloader zzun loader persistence rat spyware stealer suricata trojan

Malware Config

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
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader payload 5 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1712-62-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1712-63-0x000000000041F6F0-mapping.dmp	xloader
behavioral1/memory/1712-65-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1368-71-0x0000000000070000-0x000000000009C000-memory.dmp	xloader
behavioral1/memory/1368-77-0x0000000000070000-0x000000000009C000-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:

cscript.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	cscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\MBDX6TP8O = "C:\\Program Files (x86)\\Lzvqlxv30\\helplfvtq4y.exe"	cscript.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

XLYQSINv1hOt3N4.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Control Panel\International\Geo\Nation	XLYQSINv1hOt3N4.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1676 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

pid	process
1676	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

XLYQSINv1hOt3N4.exeXLYQSINv1hOt3N4.execscript.exe

description	pid	process	target process
PID 2008 set thread context of 1712	2008	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 1712 set thread context of 1208	1712	XLYQSINv1hOt3N4.exe	Explorer.EXE
PID 1368 set thread context of 1208	1368	cscript.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cscript.exe

description ioc process

File opened for modification C:\Program Files (x86)\Lzvqlxv30\helplfvtq4y.exe cscript.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Lzvqlxv30\helplfvtq4y.exe	cscript.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cscript.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-3440072777-2118400376-1759599358-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cscript.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

XLYQSINv1hOt3N4.exeXLYQSINv1hOt3N4.execscript.exe

pid	process
2008	XLYQSINv1hOt3N4.exe
1712	XLYQSINv1hOt3N4.exe
1712	XLYQSINv1hOt3N4.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

XLYQSINv1hOt3N4.execscript.exe

pid process

1712 XLYQSINv1hOt3N4.exe
1712 XLYQSINv1hOt3N4.exe
1712 XLYQSINv1hOt3N4.exe
1368 cscript.exe
1368 cscript.exe
1368 cscript.exe
1368 cscript.exe

pid	process
1712	XLYQSINv1hOt3N4.exe
1712	XLYQSINv1hOt3N4.exe
1712	XLYQSINv1hOt3N4.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe
1368	cscript.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

XLYQSINv1hOt3N4.exeXLYQSINv1hOt3N4.execscript.exe

description	pid	process
Token: SeDebugPrivilege	2008	XLYQSINv1hOt3N4.exe
Token: SeDebugPrivilege	1712	XLYQSINv1hOt3N4.exe
Token: SeDebugPrivilege	1368	cscript.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1208 Explorer.EXE
1208 Explorer.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE

pid	process
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

XLYQSINv1hOt3N4.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 2008 wrote to memory of 1492	2008	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 2008 wrote to memory of 1492	2008	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 2008 wrote to memory of 1492	2008	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 2008 wrote to memory of 1492	2008	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 2008 wrote to memory of 1712	2008	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 2008 wrote to memory of 1712	2008	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 2008 wrote to memory of 1712	2008	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 2008 wrote to memory of 1712	2008	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 2008 wrote to memory of 1712	2008	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 2008 wrote to memory of 1712	2008	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 2008 wrote to memory of 1712	2008	XLYQSINv1hOt3N4.exe	XLYQSINv1hOt3N4.exe
PID 1208 wrote to memory of 1368	1208	Explorer.EXE	cscript.exe
PID 1208 wrote to memory of 1368	1208	Explorer.EXE	cscript.exe
PID 1208 wrote to memory of 1368	1208	Explorer.EXE	cscript.exe
PID 1208 wrote to memory of 1368	1208	Explorer.EXE	cscript.exe
PID 1368 wrote to memory of 1676	1368	cscript.exe	cmd.exe
PID 1368 wrote to memory of 1676	1368	cscript.exe	cmd.exe
PID 1368 wrote to memory of 1676	1368	cscript.exe	cmd.exe
PID 1368 wrote to memory of 1676	1368	cscript.exe	cmd.exe
PID 1368 wrote to memory of 860	1368	cscript.exe	Firefox.exe
PID 1368 wrote to memory of 860	1368	cscript.exe	Firefox.exe
PID 1368 wrote to memory of 860	1368	cscript.exe	Firefox.exe
PID 1368 wrote to memory of 860	1368	cscript.exe	Firefox.exe
PID 1368 wrote to memory of 860	1368	cscript.exe	Firefox.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

cscript.exe

description ioc process

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

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1208

C:\Users\Admin\AppData\Local\Temp\XLYQSINv1hOt3N4.exe
"C:\Users\Admin\AppData\Local\Temp\XLYQSINv1hOt3N4.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2008

C:\Users\Admin\AppData\Local\Temp\XLYQSINv1hOt3N4.exe
"{path}"
3⤵
PID:1492

C:\Users\Admin\AppData\Local\Temp\XLYQSINv1hOt3N4.exe
"{path}"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1712

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.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:1368

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\XLYQSINv1hOt3N4.exe"
3⤵
- Deletes itself
PID:1676

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:860

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

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

memory/1208-68-0x0000000004A40000-0x0000000004B4A000-memory.dmp

Filesize
1.0MB

Download
memory/1208-78-0x0000000004B50000-0x0000000004C66000-memory.dmp

Filesize
1.1MB

Download
memory/1208-76-0x0000000004B50000-0x0000000004C66000-memory.dmp

Filesize
1.1MB

Download
memory/1368-77-0x0000000000070000-0x000000000009C000-memory.dmp

Filesize
176KB

Download
memory/1368-75-0x0000000001E70000-0x0000000001F00000-memory.dmp

Filesize
576KB

Download
memory/1368-73-0x0000000001F20000-0x0000000002223000-memory.dmp

Filesize
3.0MB

Download
memory/1368-70-0x0000000000200000-0x0000000000222000-memory.dmp

Filesize
136KB

Download
memory/1368-71-0x0000000000070000-0x000000000009C000-memory.dmp

Filesize
176KB

Download
memory/1368-69-0x0000000000000000-mapping.dmp

Download
memory/1676-72-0x0000000000000000-mapping.dmp

Download
memory/1712-59-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1712-67-0x0000000000280000-0x0000000000291000-memory.dmp

Filesize
68KB

Download
memory/1712-66-0x0000000000980000-0x0000000000C83000-memory.dmp

Filesize
3.0MB

Download
memory/1712-65-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1712-63-0x000000000041F6F0-mapping.dmp

Download
memory/1712-62-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1712-60-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2008-54-0x0000000000150000-0x0000000000280000-memory.dmp

Filesize
1.2MB

Download
memory/2008-58-0x0000000005000000-0x0000000005072000-memory.dmp

Filesize
456KB

Download
memory/2008-57-0x00000000052C0000-0x0000000005384000-memory.dmp

Filesize
784KB

Download
memory/2008-56-0x0000000000730000-0x000000000073A000-memory.dmp

Filesize
40KB

Download
memory/2008-55-0x0000000075791000-0x0000000075793000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads