formbook | e121e41abc24cd4a27ec0537679a24a0c8ab76bacbb4e7d636fff4b775a89cbd

General

Target

ET3B30WFvUox72P.exe
Size

853KB
MD5

9c08d86c88ca7a12737a5a78f3a8ad22
SHA1

135bc56ea54a1133055e102a0febef4b796d06cf
SHA256

e121e41abc24cd4a27ec0537679a24a0c8ab76bacbb4e7d636fff4b775a89cbd
SHA512

cd309209ee2577bce854784a1a0bbbf07a81ed22c768f8973d84e4e744e5e623d29d1b34580ec840313cd2713d8fb862fe460ff1953b96b4210a60cd56d8376c
SSDEEP

12288:70wOZQA6qectxWsQvktczPlDxheXw9lE2kSBcLUNfkg586aWHff:74ectxPyztDxheATPkwB5O8f

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:

ET3B30WFvUox72P.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	ET3B30WFvUox72P.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

Suspicious use of SetThreadContext 3 IoCs

Processes:

ET3B30WFvUox72P.exeET3B30WFvUox72P.exewscript.exe

description	pid	process	target process
PID 3576 set thread context of 5048	3576	ET3B30WFvUox72P.exe	ET3B30WFvUox72P.exe
PID 5048 set thread context of 2696	5048	ET3B30WFvUox72P.exe	Explorer.EXE
PID 3388 set thread context of 2696	3388	wscript.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wscript.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wscript.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

ET3B30WFvUox72P.exewscript.exe

pid	process
5048	ET3B30WFvUox72P.exe
5048	ET3B30WFvUox72P.exe
5048	ET3B30WFvUox72P.exe
5048	ET3B30WFvUox72P.exe
5048	ET3B30WFvUox72P.exe
5048	ET3B30WFvUox72P.exe
5048	ET3B30WFvUox72P.exe
5048	ET3B30WFvUox72P.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe
3388	wscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2696 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

ET3B30WFvUox72P.exewscript.exe

pid process

5048 ET3B30WFvUox72P.exe
5048 ET3B30WFvUox72P.exe
5048 ET3B30WFvUox72P.exe
3388 wscript.exe
3388 wscript.exe
3388 wscript.exe
3388 wscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

ET3B30WFvUox72P.exewscript.exe

description pid process

Token: SeDebugPrivilege 5048 ET3B30WFvUox72P.exe
Token: SeDebugPrivilege 3388 wscript.exe

pid	process
2696	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	5048	ET3B30WFvUox72P.exe
Token: SeDebugPrivilege	3388	wscript.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

ET3B30WFvUox72P.exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 3576 wrote to memory of 5048	3576	ET3B30WFvUox72P.exe	ET3B30WFvUox72P.exe
PID 3576 wrote to memory of 5048	3576	ET3B30WFvUox72P.exe	ET3B30WFvUox72P.exe
PID 3576 wrote to memory of 5048	3576	ET3B30WFvUox72P.exe	ET3B30WFvUox72P.exe
PID 3576 wrote to memory of 5048	3576	ET3B30WFvUox72P.exe	ET3B30WFvUox72P.exe
PID 3576 wrote to memory of 5048	3576	ET3B30WFvUox72P.exe	ET3B30WFvUox72P.exe
PID 3576 wrote to memory of 5048	3576	ET3B30WFvUox72P.exe	ET3B30WFvUox72P.exe
PID 2696 wrote to memory of 3388	2696	Explorer.EXE	wscript.exe
PID 2696 wrote to memory of 3388	2696	Explorer.EXE	wscript.exe
PID 2696 wrote to memory of 3388	2696	Explorer.EXE	wscript.exe
PID 3388 wrote to memory of 4608	3388	wscript.exe	Firefox.exe
PID 3388 wrote to memory of 4608	3388	wscript.exe	Firefox.exe
PID 3388 wrote to memory of 4608	3388	wscript.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2696

C:\Users\Admin\AppData\Local\Temp\ET3B30WFvUox72P.exe
"C:\Users\Admin\AppData\Local\Temp\ET3B30WFvUox72P.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3576

C:\Users\Admin\AppData\Local\Temp\ET3B30WFvUox72P.exe
"C:\Users\Admin\AppData\Local\Temp\ET3B30WFvUox72P.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:5048

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:4100

C:\Windows\SysWOW64\autochk.exe
"C:\Windows\SysWOW64\autochk.exe"
2⤵
PID:3720

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\SysWOW64\wscript.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:3388

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:4608

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

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

memory/2696-155-0x0000000008B00000-0x0000000008BD5000-memory.dmp

Filesize
852KB

Download
memory/2696-145-0x0000000008920000-0x0000000008A6A000-memory.dmp

Filesize
1.3MB

Download
memory/2696-153-0x0000000008B00000-0x0000000008BD5000-memory.dmp

Filesize
852KB

Download
memory/3388-152-0x00000000023B0000-0x000000000243F000-memory.dmp

Filesize
572KB

Download
memory/3388-154-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/3388-149-0x0000000000480000-0x00000000004A7000-memory.dmp

Filesize
156KB

Download
memory/3388-151-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/3388-146-0x0000000000000000-mapping.dmp

Download
memory/3388-150-0x0000000002590000-0x00000000028DA000-memory.dmp

Filesize
3.3MB

Download
memory/3576-136-0x0000000005BF0000-0x0000000005C8C000-memory.dmp

Filesize
624KB

Download
memory/3576-132-0x0000000000120000-0x00000000001FC000-memory.dmp

Filesize
880KB

Download
memory/3576-135-0x0000000004BA0000-0x0000000004BAA000-memory.dmp

Filesize
40KB

Download
memory/3576-134-0x0000000004C00000-0x0000000004C92000-memory.dmp

Filesize
584KB

Download
memory/3576-133-0x00000000051B0000-0x0000000005754000-memory.dmp

Filesize
5.6MB

Download
memory/5048-137-0x0000000000000000-mapping.dmp

Download
memory/5048-147-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/5048-148-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5048-144-0x00000000009F0000-0x0000000000A00000-memory.dmp

Filesize
64KB

Download
memory/5048-143-0x00000000013F0000-0x000000000173A000-memory.dmp

Filesize
3.3MB

Download
memory/5048-141-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/5048-140-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5048-138-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads