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

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-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	IyEXXDHLEU4cBtq.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

IyEXXDHLEU4cBtq.exeIyEXXDHLEU4cBtq.execontrol.exe

description	pid	process	target process
PID 4976 set thread context of 1236	4976	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 1236 set thread context of 2340	1236	IyEXXDHLEU4cBtq.exe	Explorer.EXE
PID 1440 set thread context of 2340	1440	control.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

control.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	control.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

Processes:

IyEXXDHLEU4cBtq.execontrol.exe

pid	process
1236	IyEXXDHLEU4cBtq.exe
1236	IyEXXDHLEU4cBtq.exe
1236	IyEXXDHLEU4cBtq.exe
1236	IyEXXDHLEU4cBtq.exe
1236	IyEXXDHLEU4cBtq.exe
1236	IyEXXDHLEU4cBtq.exe
1236	IyEXXDHLEU4cBtq.exe
1236	IyEXXDHLEU4cBtq.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe
1440	control.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2340 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

IyEXXDHLEU4cBtq.execontrol.exe

pid process

1236 IyEXXDHLEU4cBtq.exe
1236 IyEXXDHLEU4cBtq.exe
1236 IyEXXDHLEU4cBtq.exe
1440 control.exe
1440 control.exe
1440 control.exe
1440 control.exe

pid	process
2340	Explorer.EXE

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

IyEXXDHLEU4cBtq.execontrol.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1236	IyEXXDHLEU4cBtq.exe
Token: SeDebugPrivilege	1440	control.exe
Token: SeShutdownPrivilege	2340	Explorer.EXE
Token: SeCreatePagefilePrivilege	2340	Explorer.EXE
Token: SeShutdownPrivilege	2340	Explorer.EXE
Token: SeCreatePagefilePrivilege	2340	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

2340 Explorer.EXE
2340 Explorer.EXE

pid	process
2340	Explorer.EXE
2340	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

IyEXXDHLEU4cBtq.exeExplorer.EXEcontrol.exe

description	pid	process	target process
PID 4976 wrote to memory of 1236	4976	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 4976 wrote to memory of 1236	4976	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 4976 wrote to memory of 1236	4976	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 4976 wrote to memory of 1236	4976	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 4976 wrote to memory of 1236	4976	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 4976 wrote to memory of 1236	4976	IyEXXDHLEU4cBtq.exe	IyEXXDHLEU4cBtq.exe
PID 2340 wrote to memory of 1440	2340	Explorer.EXE	control.exe
PID 2340 wrote to memory of 1440	2340	Explorer.EXE	control.exe
PID 2340 wrote to memory of 1440	2340	Explorer.EXE	control.exe
PID 1440 wrote to memory of 3464	1440	control.exe	Firefox.exe
PID 1440 wrote to memory of 3464	1440	control.exe	Firefox.exe
PID 1440 wrote to memory of 3464	1440	control.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 WriteProcessMemory
PID:2340

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:4976

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:1236

C:\Windows\SysWOW64\control.exe
"C:\Windows\SysWOW64\control.exe"
2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1440

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3464

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/1236-143-0x0000000000FA0000-0x00000000012EA000-memory.dmp

Filesize
3.3MB

Download
memory/1236-140-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1236-142-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/1236-141-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1236-144-0x00000000009E0000-0x00000000009F0000-memory.dmp

Filesize
64KB

Download
memory/1236-137-0x0000000000000000-mapping.dmp

Download
memory/1236-138-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1440-149-0x0000000002CD0000-0x000000000301A000-memory.dmp

Filesize
3.3MB

Download
memory/1440-150-0x0000000002BB0000-0x0000000002C3F000-memory.dmp

Filesize
572KB

Download
memory/1440-151-0x0000000000B70000-0x0000000000B9D000-memory.dmp

Filesize
180KB

Download
memory/1440-147-0x0000000000530000-0x0000000000557000-memory.dmp

Filesize
156KB

Download
memory/1440-148-0x0000000000B70000-0x0000000000B9D000-memory.dmp

Filesize
180KB

Download
memory/1440-146-0x0000000000000000-mapping.dmp

Download
memory/2340-145-0x00000000031E0000-0x00000000032B6000-memory.dmp

Filesize
856KB

Download
memory/2340-152-0x0000000008A30000-0x0000000008B43000-memory.dmp

Filesize
1.1MB

Download
memory/2340-153-0x0000000008A30000-0x0000000008B43000-memory.dmp

Filesize
1.1MB

Download
memory/4976-135-0x0000000005710000-0x000000000571A000-memory.dmp

Filesize
40KB

Download
memory/4976-136-0x00000000079C0000-0x0000000007A5C000-memory.dmp

Filesize
624KB

Download
memory/4976-134-0x0000000005660000-0x00000000056F2000-memory.dmp

Filesize
584KB

Download
memory/4976-133-0x0000000005D70000-0x0000000006314000-memory.dmp

Filesize
5.6MB

Download
memory/4976-132-0x0000000000C20000-0x0000000000CDA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads