formbook | 87cfe92ace5f79ca092a7e9b60a0cdcc4776f8583bf2ff70a8461246d6a71687

General

Target

QUOTATION.exe
Size

810KB
MD5

f516dea583b4b0f7fcb8d6dd89699f78
SHA1

a7e60518cf65022b9ce54993ba40bca09b3a024c
SHA256

2f1b95fb8123decdb56781dc245603e02ff9a1d2c2962d51fab3946712059a0a
SHA512

d079db285753c2b74f4c2520042f2857a4523c8551da6dcad0ff5e02c28348585cf7ee126b0772977faf89fd4de0bf7cd3c96fea7a5069a5ef3d810df1147b92

Score

10^/10

formbook xloader loader persistence rat spyware stealer suricata trojan

Malware Config

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 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1632-63-0x000000000041C790-mapping.dmp	xloader
behavioral1/memory/1632-62-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/1632-65-0x0000000000400000-0x0000000000428000-memory.dmp	xloader
behavioral1/memory/1084-73-0x0000000000080000-0x00000000000A8000-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:

mstsc.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	mstsc.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\JTH0NRUHVFE = "C:\\Program Files (x86)\\Zwnuxv4rh\\colorcplg0h.exe"	mstsc.exe

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

320 cmd.exe

pid	process
320	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

QUOTATION.exeQUOTATION.exemstsc.exe

description	pid	process	target process
PID 1304 set thread context of 1632	1304	QUOTATION.exe	QUOTATION.exe
PID 1632 set thread context of 1268	1632	QUOTATION.exe	Explorer.EXE
PID 1084 set thread context of 1268	1084	mstsc.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

mstsc.exe

description ioc process

File opened for modification C:\Program Files (x86)\Zwnuxv4rh\colorcplg0h.exe mstsc.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Zwnuxv4rh\colorcplg0h.exe	mstsc.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

mstsc.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	mstsc.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

QUOTATION.exemstsc.exe

pid	process
1632	QUOTATION.exe
1632	QUOTATION.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe
1084	mstsc.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

QUOTATION.exemstsc.exe

pid process

1632 QUOTATION.exe
1632 QUOTATION.exe
1632 QUOTATION.exe
1084 mstsc.exe
1084 mstsc.exe
1084 mstsc.exe
1084 mstsc.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

QUOTATION.exemstsc.exeExplorer.EXE

description pid process

Token: SeDebugPrivilege 1632 QUOTATION.exe
Token: SeDebugPrivilege 1084 mstsc.exe
Token: SeShutdownPrivilege 1268 Explorer.EXE
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
1268 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
1268 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1632	QUOTATION.exe
Token: SeDebugPrivilege	1084	mstsc.exe
Token: SeShutdownPrivilege	1268	Explorer.EXE

pid	process
1268	Explorer.EXE
1268	Explorer.EXE

pid	process
1268	Explorer.EXE
1268	Explorer.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

QUOTATION.exeExplorer.EXEmstsc.exe

description	pid	process	target process
PID 1304 wrote to memory of 1632	1304	QUOTATION.exe	QUOTATION.exe
PID 1304 wrote to memory of 1632	1304	QUOTATION.exe	QUOTATION.exe
PID 1304 wrote to memory of 1632	1304	QUOTATION.exe	QUOTATION.exe
PID 1304 wrote to memory of 1632	1304	QUOTATION.exe	QUOTATION.exe
PID 1304 wrote to memory of 1632	1304	QUOTATION.exe	QUOTATION.exe
PID 1304 wrote to memory of 1632	1304	QUOTATION.exe	QUOTATION.exe
PID 1304 wrote to memory of 1632	1304	QUOTATION.exe	QUOTATION.exe
PID 1268 wrote to memory of 1084	1268	Explorer.EXE	mstsc.exe
PID 1268 wrote to memory of 1084	1268	Explorer.EXE	mstsc.exe
PID 1268 wrote to memory of 1084	1268	Explorer.EXE	mstsc.exe
PID 1268 wrote to memory of 1084	1268	Explorer.EXE	mstsc.exe
PID 1084 wrote to memory of 320	1084	mstsc.exe	cmd.exe
PID 1084 wrote to memory of 320	1084	mstsc.exe	cmd.exe
PID 1084 wrote to memory of 320	1084	mstsc.exe	cmd.exe
PID 1084 wrote to memory of 320	1084	mstsc.exe	cmd.exe
PID 1084 wrote to memory of 1504	1084	mstsc.exe	Firefox.exe
PID 1084 wrote to memory of 1504	1084	mstsc.exe	Firefox.exe
PID 1084 wrote to memory of 1504	1084	mstsc.exe	Firefox.exe
PID 1084 wrote to memory of 1504	1084	mstsc.exe	Firefox.exe
PID 1084 wrote to memory of 1504	1084	mstsc.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:1268

C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1304

C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe
"C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1632

C:\Windows\SysWOW64\mstsc.exe
"C:\Windows\SysWOW64\mstsc.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
PID:1084

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\QUOTATION.exe"
3⤵
- Deletes itself
PID:320

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1504

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

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/320-71-0x0000000000000000-mapping.dmp

Download
memory/1084-69-0x0000000000000000-mapping.dmp

Download
memory/1084-72-0x0000000000490000-0x0000000000594000-memory.dmp

Filesize
1.0MB

Download
memory/1084-73-0x0000000000080000-0x00000000000A8000-memory.dmp

Filesize
160KB

Download
memory/1084-74-0x0000000002130000-0x0000000002433000-memory.dmp

Filesize
3.0MB

Download
memory/1084-75-0x0000000002060000-0x00000000020EF000-memory.dmp

Filesize
572KB

Download
memory/1268-76-0x00000000063C0000-0x00000000064A3000-memory.dmp

Filesize
908KB

Download
memory/1268-68-0x0000000004D50000-0x0000000004E24000-memory.dmp

Filesize
848KB

Download
memory/1304-54-0x0000000000880000-0x0000000000950000-memory.dmp

Filesize
832KB

Download
memory/1304-58-0x0000000002000000-0x000000000203E000-memory.dmp

Filesize
248KB

Download
memory/1304-57-0x0000000004B60000-0x0000000004BC8000-memory.dmp

Filesize
416KB

Download
memory/1304-56-0x0000000000390000-0x00000000003A0000-memory.dmp

Filesize
64KB

Download
memory/1304-55-0x0000000076531000-0x0000000076533000-memory.dmp

Filesize
8KB

Download
memory/1632-59-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1632-67-0x00000000000B0000-0x00000000000C0000-memory.dmp

Filesize
64KB

Download
memory/1632-66-0x0000000000BF0000-0x0000000000EF3000-memory.dmp

Filesize
3.0MB

Download
memory/1632-65-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1632-62-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/1632-63-0x000000000041C790-mapping.dmp

Download
memory/1632-60-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads