formbook | 5846e4c3d380772683c6398d37c33d7a3484762fccd6d8636b2b5d337637d00a

General

Target

STD 35 GA Plan_doc.exe
Size

867KB
MD5

d367a1f17ef481d21775f424c4beb7b7
SHA1

fc083e789e7f06627bf3465f74524a5758896f32
SHA256

5846e4c3d380772683c6398d37c33d7a3484762fccd6d8636b2b5d337637d00a
SHA512

2b9c821c00989e6cf9ee1279f8d34d8d02f3af5e07269d34e8e29c6a137e66522eff8211fb3c68bfafaef099aaec926a0a070bc940dd94f30657061b98541566

Score

10^/10

formbook xloader iewb loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.9

Campaign

iewb

Decoy

n8FLlgIlb1rSEg5hJ9xMbw4hcmR38Q==

5vIAIY+pt81OtWs+FdIEdk7Y

LHIKc+oWGIQUUlfAAtEEdk7Y

ePM/cX2jvHrS

5hvPEw22+fdvmJz3C8FIVq0=

mb9EeX2jvHrS

Dx2zIYNvfjo8VUo5

6jVPnyJekv2RAc4gLKNwEqQ=

KWatHyjdE5Gj1Ng=

t9lk70gzUAZty4qjbVjF

6eUBeFPzKBWT125BFNIEdk7Y

dZUXOIyqTJGj1Ng=

iL3TVh2Jl5QVStnzxcAhIL8=

J1prtyklUfZGR/xDD71IbkWRd2yx

s9FgCOBRW9bU0Y6jbVjF

RYCbQDzcFBhcylgu

Fl0BV/8RJm6F9QRg8LXXTLo=

0dhumHzrCCZ3wdQg7nFF1AlL6Tk=

xvL+iL6wwX+/wH9K4lbZ/A==

N0lVceIFD5Gj1Ng=

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 6 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1432-64-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1432-65-0x000000000041F840-mapping.dmp	xloader
behavioral1/memory/1432-68-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1432-77-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral1/memory/1684-79-0x0000000000110000-0x000000000013C000-memory.dmp	xloader
behavioral1/memory/1684-84-0x0000000000110000-0x000000000013C000-memory.dmp	xloader

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:

STD 35 GA Plan_doc.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation	STD 35 GA Plan_doc.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wlanext.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	wlanext.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\8PPDU2E006 = "C:\\Program Files (x86)\\Lihhl\\vga3f4.exe"	wlanext.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

STD 35 GA Plan_doc.exeSTD 35 GA Plan_doc.exewlanext.exe

description	pid	process	target process
PID 1948 set thread context of 1432	1948	STD 35 GA Plan_doc.exe	STD 35 GA Plan_doc.exe
PID 1432 set thread context of 1368	1432	STD 35 GA Plan_doc.exe	Explorer.EXE
PID 1432 set thread context of 1368	1432	STD 35 GA Plan_doc.exe	Explorer.EXE
PID 1684 set thread context of 1368	1684	wlanext.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

wlanext.exe

description ioc process

File opened for modification C:\Program Files (x86)\Lihhl\vga3f4.exe wlanext.exe
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

848 1948 WerFault.exe STD 35 GA Plan_doc.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Lihhl\vga3f4.exe	wlanext.exe

pid	pid_target	process	target process
848	1948	WerFault.exe	STD 35 GA Plan_doc.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wlanext.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1819626980-2277161760-1023733287-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wlanext.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

Processes:

STD 35 GA Plan_doc.exewlanext.exe

pid	process
1432	STD 35 GA Plan_doc.exe
1432	STD 35 GA Plan_doc.exe
1432	STD 35 GA Plan_doc.exe
1684	wlanext.exe
1684	wlanext.exe
1684	wlanext.exe
1684	wlanext.exe
1684	wlanext.exe
1684	wlanext.exe
1684	wlanext.exe

Suspicious behavior: MapViewOfSection 8 IoCs

Processes:

STD 35 GA Plan_doc.exewlanext.exe

pid	process
1432	STD 35 GA Plan_doc.exe
1432	STD 35 GA Plan_doc.exe
1432	STD 35 GA Plan_doc.exe
1432	STD 35 GA Plan_doc.exe
1684	wlanext.exe
1684	wlanext.exe
1684	wlanext.exe
1684	wlanext.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

STD 35 GA Plan_doc.exeExplorer.EXEwlanext.exe

description	pid	process
Token: SeDebugPrivilege	1432	STD 35 GA Plan_doc.exe
Token: SeShutdownPrivilege	1368	Explorer.EXE
Token: SeDebugPrivilege	1684	wlanext.exe

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1368 Explorer.EXE
1368 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1368 Explorer.EXE
1368 Explorer.EXE

pid	process
1368	Explorer.EXE
1368	Explorer.EXE

pid	process
1368	Explorer.EXE
1368	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

STD 35 GA Plan_doc.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 1948 wrote to memory of 1432	1948	STD 35 GA Plan_doc.exe	STD 35 GA Plan_doc.exe
PID 1948 wrote to memory of 1432	1948	STD 35 GA Plan_doc.exe	STD 35 GA Plan_doc.exe
PID 1948 wrote to memory of 1432	1948	STD 35 GA Plan_doc.exe	STD 35 GA Plan_doc.exe
PID 1948 wrote to memory of 1432	1948	STD 35 GA Plan_doc.exe	STD 35 GA Plan_doc.exe
PID 1948 wrote to memory of 1432	1948	STD 35 GA Plan_doc.exe	STD 35 GA Plan_doc.exe
PID 1948 wrote to memory of 1432	1948	STD 35 GA Plan_doc.exe	STD 35 GA Plan_doc.exe
PID 1948 wrote to memory of 1432	1948	STD 35 GA Plan_doc.exe	STD 35 GA Plan_doc.exe
PID 1948 wrote to memory of 848	1948	STD 35 GA Plan_doc.exe	WerFault.exe
PID 1948 wrote to memory of 848	1948	STD 35 GA Plan_doc.exe	WerFault.exe
PID 1948 wrote to memory of 848	1948	STD 35 GA Plan_doc.exe	WerFault.exe
PID 1948 wrote to memory of 848	1948	STD 35 GA Plan_doc.exe	WerFault.exe
PID 1368 wrote to memory of 1684	1368	Explorer.EXE	wlanext.exe
PID 1368 wrote to memory of 1684	1368	Explorer.EXE	wlanext.exe
PID 1368 wrote to memory of 1684	1368	Explorer.EXE	wlanext.exe
PID 1368 wrote to memory of 1684	1368	Explorer.EXE	wlanext.exe
PID 1684 wrote to memory of 800	1684	wlanext.exe	cmd.exe
PID 1684 wrote to memory of 800	1684	wlanext.exe	cmd.exe
PID 1684 wrote to memory of 800	1684	wlanext.exe	cmd.exe
PID 1684 wrote to memory of 800	1684	wlanext.exe	cmd.exe
PID 1684 wrote to memory of 632	1684	wlanext.exe	Firefox.exe
PID 1684 wrote to memory of 632	1684	wlanext.exe	Firefox.exe
PID 1684 wrote to memory of 632	1684	wlanext.exe	Firefox.exe
PID 1684 wrote to memory of 632	1684	wlanext.exe	Firefox.exe
PID 1684 wrote to memory of 632	1684	wlanext.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1368

C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_doc.exe
"C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_doc.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1948

C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_doc.exe
"C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_doc.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1432

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1948 -s 904
3⤵
- Program crash
PID:848

C:\Windows\SysWOW64\wlanext.exe
"C:\Windows\SysWOW64\wlanext.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:1684

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\STD 35 GA Plan_doc.exe"
3⤵
PID:800

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:632

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

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/800-80-0x0000000000000000-mapping.dmp

Download
memory/848-66-0x0000000000000000-mapping.dmp

Download
memory/1368-85-0x00000000071A0000-0x00000000072B3000-memory.dmp

Filesize
1.1MB

Download
memory/1368-83-0x00000000071A0000-0x00000000072B3000-memory.dmp

Filesize
1.1MB

Download
memory/1368-75-0x0000000007040000-0x0000000007195000-memory.dmp

Filesize
1.3MB

Download
memory/1368-71-0x0000000006A60000-0x0000000006BB7000-memory.dmp

Filesize
1.3MB

Download
memory/1432-70-0x0000000000290000-0x00000000002A1000-memory.dmp

Filesize
68KB

Download
memory/1432-74-0x0000000000360000-0x0000000000371000-memory.dmp

Filesize
68KB

Download
memory/1432-62-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1432-64-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1432-65-0x000000000041F840-mapping.dmp

Download
memory/1432-77-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1432-68-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1432-69-0x0000000000980000-0x0000000000C83000-memory.dmp

Filesize
3.0MB

Download
memory/1432-61-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/1684-81-0x0000000001F20000-0x0000000002223000-memory.dmp

Filesize
3.0MB

Download
memory/1684-78-0x0000000000500000-0x0000000000516000-memory.dmp

Filesize
88KB

Download
memory/1684-84-0x0000000000110000-0x000000000013C000-memory.dmp

Filesize
176KB

Download
memory/1684-82-0x0000000001E20000-0x0000000001EB0000-memory.dmp

Filesize
576KB

Download
memory/1684-76-0x0000000000000000-mapping.dmp

Download
memory/1684-79-0x0000000000110000-0x000000000013C000-memory.dmp

Filesize
176KB

Download
memory/1948-72-0x0000000004DA5000-0x0000000004DB6000-memory.dmp

Filesize
68KB

Download
memory/1948-60-0x0000000004D60000-0x0000000004D92000-memory.dmp

Filesize
200KB

Download
memory/1948-58-0x0000000004EE0000-0x0000000004F5A000-memory.dmp

Filesize
488KB

Download
memory/1948-59-0x0000000004DA5000-0x0000000004DB6000-memory.dmp

Filesize
68KB

Download
memory/1948-57-0x00000000006B0000-0x00000000006BE000-memory.dmp

Filesize
56KB

Download
memory/1948-56-0x00000000005F0000-0x000000000060A000-memory.dmp

Filesize
104KB

Download
memory/1948-54-0x00000000008A0000-0x000000000097E000-memory.dmp

Filesize
888KB

Download
memory/1948-55-0x0000000076571000-0x0000000076573000-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