formbook | 501d6ddc2677cf909cdf85570bfbf09099004a108236bb25954758387f080b9f

General

Target

IyEXXDHLEU4cBtq.exe
Size

721KB
MD5

0dd734598701e5ba50d5596a42b8d94c
SHA1

d6cf2163dd892eb8c5e274856c61e9f90b03d1d9
SHA256

501d6ddc2677cf909cdf85570bfbf09099004a108236bb25954758387f080b9f
SHA512

d22bf5d34170f274883346349b3093d90d15a5769e9d6a1a7fb75e6230b9bce373af1f7601d40c19aa34551bbcbc08170cae464651525bdc02d418efd378c745
SSDEEP

12288:yxBnM33302IgFJN0V3foFtswOSf5nHoHY8up3wxb4xZ2cbTEcjZnbCkI:YBnG30YComSxEY8gwxED2SBjZnbCkI

Score

10^/10

formbook bmr1 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

bmr1

Decoy

q05YNsJC4MpYLGAf4A==

6KUzKCvwX0fwzrFQXvlucw==

KA4ZibW1w+hWN5Q=

TfgNq18tIWtsM7h+DexncQ==

zspNqjUKBdJVHTkiMMXJYeF7G53bVvMPoA==

hopQr+b8KzPIbMWvw0Yxir6cyw==

2thmt+17FR/MVsakbM/+w3xGOhopJw==

5gO5gfA6jwna/4FNSPqrvvHyr2A=

kqtr0wr9KaOXVMyDDexncQ==

PNldyz0Boa5cLGAf4A==

Gysor7fqabd0UzTwWp3Zir6cyw==

pMRgV18gtLorB21prX4=

ukpf+vu2u+hWN5Q=

pcS/rO+KmPMj69G9cMHnoSEm59cbIQ==

4fWGzv347bFNDYJeeIHKG5co

WXlRyM2Yn+4Ab1EgRAFHWdGDCzf1

ZPoM+2U1cwMzteOBsHY=

o8jQoNron4sT3A/KomE=

7QX8tTpv/A+YKw==

wFvmV8SY/A+YKw==

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Blocklisted process makes network request 1 IoCs

Processes:

cscript.exe

flow pid process

7 676 cscript.exe

flow	pid	process
7	676	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:

IyEXXDHLEU4cBtq.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Control Panel\International\Geo\Nation	IyEXXDHLEU4cBtq.exe

Loads dropped DLL 1 IoCs

Processes:

cscript.exe

pid process

676 cscript.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
676	cscript.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

IyEXXDHLEU4cBtq.exeIyEXXDHLEU4cBtq.execscript.exe

description	pid	process	target process
PID 1756 set thread context of 360	1756	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 360 set thread context of 1268	360	IyEXXDHLEU4cBtq.exe	Explorer.EXE
PID 676 set thread context of 1268	676	cscript.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cscript.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1214520366-621468234-4062160515-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cscript.exe

Suspicious behavior: EnumeratesProcesses 18 IoCs

Processes:

IyEXXDHLEU4cBtq.execscript.exe

pid	process
360	IyEXXDHLEU4cBtq.exe
360	IyEXXDHLEU4cBtq.exe
360	IyEXXDHLEU4cBtq.exe
360	IyEXXDHLEU4cBtq.exe
676	cscript.exe
676	cscript.exe
676	cscript.exe
676	cscript.exe
676	cscript.exe
676	cscript.exe
676	cscript.exe
676	cscript.exe
676	cscript.exe
676	cscript.exe
676	cscript.exe
676	cscript.exe
676	cscript.exe
676	cscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1268 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

IyEXXDHLEU4cBtq.execscript.exe

pid process

360 IyEXXDHLEU4cBtq.exe
360 IyEXXDHLEU4cBtq.exe
360 IyEXXDHLEU4cBtq.exe
676 cscript.exe
676 cscript.exe
676 cscript.exe
676 cscript.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

IyEXXDHLEU4cBtq.execscript.exeExplorer.EXE

description pid process

Token: SeDebugPrivilege 360 IyEXXDHLEU4cBtq.exe
Token: SeDebugPrivilege 676 cscript.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

pid	process
1268	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	360	IyEXXDHLEU4cBtq.exe
Token: SeDebugPrivilege	676	cscript.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 16 IoCs

Processes:

IyEXXDHLEU4cBtq.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 1756 wrote to memory of 360	1756	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 1756 wrote to memory of 360	1756	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 1756 wrote to memory of 360	1756	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 1756 wrote to memory of 360	1756	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 1756 wrote to memory of 360	1756	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 1756 wrote to memory of 360	1756	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 1756 wrote to memory of 360	1756	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 1268 wrote to memory of 676	1268	Explorer.EXE	cscript.exe
PID 1268 wrote to memory of 676	1268	Explorer.EXE	cscript.exe
PID 1268 wrote to memory of 676	1268	Explorer.EXE	cscript.exe
PID 1268 wrote to memory of 676	1268	Explorer.EXE	cscript.exe
PID 676 wrote to memory of 1528	676	cscript.exe	Firefox.exe
PID 676 wrote to memory of 1528	676	cscript.exe	Firefox.exe
PID 676 wrote to memory of 1528	676	cscript.exe	Firefox.exe
PID 676 wrote to memory of 1528	676	cscript.exe	Firefox.exe
PID 676 wrote to memory of 1528	676	cscript.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1268

C:\Users\Admin\AppData\Local\Temp\IyEXXDHLEU4cBtq.exe
"C:\Users\Admin\AppData\Local\Temp\IyEXXDHLEU4cBtq.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1756

C:\Users\Admin\AppData\Local\Temp\IyEXXDHLEU4cBtq.exe
"C:\Users\Admin\AppData\Local\Temp\IyEXXDHLEU4cBtq.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:360

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.exe"
2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:676

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1528

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
804KB

MD5
b09588d000ef4bf2a3dddd85bd701423

SHA1
44a810ff8920a340a30b66d932253555143dc28b

SHA256
ce4ffc1a12150b8523378553f2a97dd3fc44d5210ae6c296ab31e2c78f0d03c3

SHA512
1d807d92da34ccba4628f2a55c3ac1c03ff63925d79e266b4e52d71002228cbde76206ec696c3e25143fc2e0cab56589155666ff6f8ea0ebfd5ebcd362168e2a

Download Submit
memory/360-69-0x00000000008C0000-0x0000000000BC3000-memory.dmp

Filesize
3.0MB

Download
memory/360-66-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/360-68-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/360-67-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/360-70-0x00000000001A0000-0x00000000001B0000-memory.dmp

Filesize
64KB

Download
memory/360-60-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/360-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/360-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/360-64-0x00000000004012B0-mapping.dmp

Download
memory/676-78-0x0000000000070000-0x000000000009D000-memory.dmp

Filesize
180KB

Download
memory/676-76-0x0000000001DE0000-0x0000000001E6F000-memory.dmp

Filesize
572KB

Download
memory/676-75-0x00000000020B0000-0x00000000023B3000-memory.dmp

Filesize
3.0MB

Download
memory/676-73-0x0000000000310000-0x0000000000332000-memory.dmp

Filesize
136KB

Download
memory/676-74-0x0000000000070000-0x000000000009D000-memory.dmp

Filesize
180KB

Download
memory/676-72-0x0000000000000000-mapping.dmp

Download
memory/1268-71-0x0000000006B20000-0x0000000006C7E000-memory.dmp

Filesize
1.4MB

Download
memory/1268-77-0x0000000004B70000-0x0000000004CB7000-memory.dmp

Filesize
1.3MB

Download
memory/1268-80-0x0000000004B70000-0x0000000004CB7000-memory.dmp

Filesize
1.3MB

Download
memory/1756-58-0x0000000005E40000-0x0000000005EB0000-memory.dmp

Filesize
448KB

Download
memory/1756-59-0x0000000000AA0000-0x0000000000AD6000-memory.dmp

Filesize
216KB

Download
memory/1756-56-0x00000000003E0000-0x00000000003F8000-memory.dmp

Filesize
96KB

Download
memory/1756-55-0x0000000075C11000-0x0000000075C13000-memory.dmp

Filesize
8KB

Download
memory/1756-54-0x0000000000CA0000-0x0000000000D5A000-memory.dmp

Filesize
744KB

Download
memory/1756-57-0x00000000003C0000-0x00000000003CC000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads