formbook | 35f7728e3450f9ad4c024e5b2eefbd0446a46cdb08729515a974e864d1913c2f

Analysis

max time kernel
149s
max time network
117s
platform
windows11-21h2_x64
resource
win11-20260513-en
resource tags

arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
20/05/2026, 17:32

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General

Target
Purchase_Order_of_Eltra_Machine_Consumables.exe
Size 1.2MB
Sample260520-v4kckaez2j
SHA256 35f7728e3450f9ad4c024e5b2eefbd0446a46cdb08729515a974e864d1913c2f
MD5 0577005451f75e7421697e62e0beedb0
SHA1 5816bd2d418802e621cd69222e47e77ffe1c39d9
SHA512 c8a4795b387644600b19e67a9cf5c173c17aa1c7aaabaf7e038133322369f687d0dc16aa3646fcde33aa7c631723592a3a42e9b36483167f406a8a5cd4ff9ce1
SSDEEP 24576:ltb20pkaCqT5TBWgNQ7ak8AVouq3nhooaEZJ86A:WVg5tQ7ak8fuq3moaE45
TLSH
T1AB45C01363DE8361C7B25273BA26B701AEBF782506A5F96B2FD4093DF920121521E773
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery formbook rat spyware stealer trojan

Malware Config

Signatures

Family: Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/756-12-0x0000000000400000-0x0000000000449000-memory.dmp	family_formbook
behavioral2/memory/756-14-0x0000000000400000-0x0000000000449000-memory.dmp	family_formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3136 set thread context of 756	3136	Purchase_Order_of_Eltra_Machine_Consumables.exe	81

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5036	3136	WerFault.exe	80

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Purchase_Order_of_Eltra_Machine_Consumables.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
756	svchost.exe
756	svchost.exe
756	svchost.exe
756	svchost.exe
756	svchost.exe
756	svchost.exe
756	svchost.exe
756	svchost.exe
756	svchost.exe
756	svchost.exe
756	svchost.exe
756	svchost.exe
756	svchost.exe
756	svchost.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
3136	Purchase_Order_of_Eltra_Machine_Consumables.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3136	Purchase_Order_of_Eltra_Machine_Consumables.exe
3136	Purchase_Order_of_Eltra_Machine_Consumables.exe

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
3136	Purchase_Order_of_Eltra_Machine_Consumables.exe
3136	Purchase_Order_of_Eltra_Machine_Consumables.exe

Suspicious use of WriteProcessMemory 1 IoCs

description	pid	Process	procid_target
PID 3136 wrote to memory of 756	3136	Purchase_Order_of_Eltra_Machine_Consumables.exe	81

C:\Users\Admin\AppData\Local\Temp\Purchase_Order_of_Eltra_Machine_Consumables.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase_Order_of_Eltra_Machine_Consumables.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3136
- C:\Windows\SysWOW64\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase_Order_of_Eltra_Machine_Consumables.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:756
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3136 -s 796
  2⤵
  - Program crash
  PID:5036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3136 -ip 3136
1⤵
PID:2220

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

aut4DFC.tmp

Path C:\Users\Admin\AppData\Local\Temp\aut4DFC.tmp
Size 289KB
SHA256 f72c68acd927228a39d64a2c2fc794787f9295672287ca4df9262595cac8917b
MD5 f86898c116ee5a65c28f2369da9401ce
SHA1 61c6ceb8e469aad9c0001249eb1954b229e6ea4d
SHA512 5bb0e7bc58e9e200ae64a2c8cc2bb09b00376f0ffb4c57fc471d78d2afb1add536765d89f1d6185a8029b9ba056c21e10c49bab12db35411ea536e1b424faf1d
SSDEEP 6144:bVyDZ0c9cCttrvXJ2XqJtTe7O/jikNii9z+W0AHj/hLgbdSDOS65:pyDegBt7NJ+OL7Hz+WDHjhEx0Op
TLSH
T1A554019117C6CF2457CA3B292672BA91317B923A171D1F6A47C7B0F08E2F4C1AB525D1
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/756-11-0x0000000000400000-0x0000000000449000-memory.dmp

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memory/756-12-0x0000000000400000-0x0000000000449000-memory.dmp

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memory/756-13-0x0000000001D00000-0x0000000002056000-memory.dmp

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memory/756-14-0x0000000000400000-0x0000000000449000-memory.dmp

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memory/3136-10-0x0000000001900000-0x0000000001904000-memory.dmp

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