formbook | 01ff3a6ce715226b103f3bf80bdb44737fc8bccd38119a7372d8cdcfd3b034c7

General

Target

H5156PJz1rv4wmz.exe
Size

815KB
MD5

d0c93e0d31223227c2fc2c0fcaaedc55
SHA1

da95e18dc3d6e7ac2cf4cd5d5921f26b4a5ee7f2
SHA256

01ff3a6ce715226b103f3bf80bdb44737fc8bccd38119a7372d8cdcfd3b034c7
SHA512

6578f8268f52b8aee586db59e1000b4ded52fb84f8c9b45e44112306469217c9467a8abc3002124f4e1ea6f02ba220276b90972f953fcb0883c771dde1ab8376
SSDEEP

12288:rSWjCds6ggCGMqJPdmqnHaGg2R31UQjTYTSIg95lvTHRyoY:Hugf+VnHadk1Uu0TSIgvpjRpY

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:

H5156PJz1rv4wmz.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	H5156PJz1rv4wmz.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

H5156PJz1rv4wmz.exeH5156PJz1rv4wmz.exechkdsk.exe

description	pid	process	target process
PID 1648 set thread context of 2100	1648	H5156PJz1rv4wmz.exe	H5156PJz1rv4wmz.exe
PID 2100 set thread context of 2616	2100	H5156PJz1rv4wmz.exe	Explorer.EXE
PID 4652 set thread context of 2616	4652	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 46 IoCs

Processes:

H5156PJz1rv4wmz.exechkdsk.exe

pid	process
2100	H5156PJz1rv4wmz.exe
2100	H5156PJz1rv4wmz.exe
2100	H5156PJz1rv4wmz.exe
2100	H5156PJz1rv4wmz.exe
2100	H5156PJz1rv4wmz.exe
2100	H5156PJz1rv4wmz.exe
2100	H5156PJz1rv4wmz.exe
2100	H5156PJz1rv4wmz.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe
4652	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2616 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

H5156PJz1rv4wmz.exechkdsk.exe

pid process

2100 H5156PJz1rv4wmz.exe
2100 H5156PJz1rv4wmz.exe
2100 H5156PJz1rv4wmz.exe
4652 chkdsk.exe
4652 chkdsk.exe
4652 chkdsk.exe
4652 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

H5156PJz1rv4wmz.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 2100 H5156PJz1rv4wmz.exe
Token: SeDebugPrivilege 4652 chkdsk.exe

pid	process
2616	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2100	H5156PJz1rv4wmz.exe
Token: SeDebugPrivilege	4652	chkdsk.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

H5156PJz1rv4wmz.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1648 wrote to memory of 2100	1648	H5156PJz1rv4wmz.exe	H5156PJz1rv4wmz.exe
PID 1648 wrote to memory of 2100	1648	H5156PJz1rv4wmz.exe	H5156PJz1rv4wmz.exe
PID 1648 wrote to memory of 2100	1648	H5156PJz1rv4wmz.exe	H5156PJz1rv4wmz.exe
PID 1648 wrote to memory of 2100	1648	H5156PJz1rv4wmz.exe	H5156PJz1rv4wmz.exe
PID 1648 wrote to memory of 2100	1648	H5156PJz1rv4wmz.exe	H5156PJz1rv4wmz.exe
PID 1648 wrote to memory of 2100	1648	H5156PJz1rv4wmz.exe	H5156PJz1rv4wmz.exe
PID 2616 wrote to memory of 4652	2616	Explorer.EXE	chkdsk.exe
PID 2616 wrote to memory of 4652	2616	Explorer.EXE	chkdsk.exe
PID 2616 wrote to memory of 4652	2616	Explorer.EXE	chkdsk.exe
PID 4652 wrote to memory of 872	4652	chkdsk.exe	Firefox.exe
PID 4652 wrote to memory of 872	4652	chkdsk.exe	Firefox.exe
PID 4652 wrote to memory of 872	4652	chkdsk.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2616

C:\Users\Admin\AppData\Local\Temp\H5156PJz1rv4wmz.exe
"C:\Users\Admin\AppData\Local\Temp\H5156PJz1rv4wmz.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1648

C:\Users\Admin\AppData\Local\Temp\H5156PJz1rv4wmz.exe
"C:\Users\Admin\AppData\Local\Temp\H5156PJz1rv4wmz.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2100

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4652

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:872

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1648-132-0x0000000000950000-0x0000000000A22000-memory.dmp

Filesize
840KB

Download
memory/1648-133-0x0000000005930000-0x0000000005ED4000-memory.dmp

Filesize
5.6MB

Download
memory/1648-134-0x00000000052C0000-0x0000000005352000-memory.dmp

Filesize
584KB

Download
memory/1648-135-0x0000000005360000-0x000000000536A000-memory.dmp

Filesize
40KB

Download
memory/1648-136-0x0000000008FE0000-0x000000000907C000-memory.dmp

Filesize
624KB

Download
memory/2100-144-0x0000000000980000-0x0000000000990000-memory.dmp

Filesize
64KB

Download
memory/2100-148-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/2100-140-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2100-141-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/2100-142-0x0000000000F40000-0x000000000128A000-memory.dmp

Filesize
3.3MB

Download
memory/2100-137-0x0000000000000000-mapping.dmp

Download
memory/2100-138-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2100-147-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2616-145-0x0000000007C00000-0x0000000007CD9000-memory.dmp

Filesize
868KB

Download
memory/2616-153-0x0000000008BD0000-0x0000000008D39000-memory.dmp

Filesize
1.4MB

Download
memory/2616-155-0x0000000008BD0000-0x0000000008D39000-memory.dmp

Filesize
1.4MB

Download
memory/4652-146-0x0000000000000000-mapping.dmp

Download
memory/4652-149-0x0000000000E10000-0x0000000000E1A000-memory.dmp

Filesize
40KB

Download
memory/4652-150-0x0000000000CA0000-0x0000000000CCD000-memory.dmp

Filesize
180KB

Download
memory/4652-151-0x0000000001430000-0x000000000177A000-memory.dmp

Filesize
3.3MB

Download
memory/4652-152-0x0000000001370000-0x00000000013FF000-memory.dmp

Filesize
572KB

Download
memory/4652-154-0x0000000000CA0000-0x0000000000CCD000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads