formbook | 1235cd108420d0531298421c807f494e09133bdab337a0d13c6e1bb7ebf239c4

General

Target

fifth.exe
Size

736KB
MD5

f4937a3e14c770221de47df00885285b
SHA1

dc22ac92d802f7339691082330dc36a236e86644
SHA256

1235cd108420d0531298421c807f494e09133bdab337a0d13c6e1bb7ebf239c4
SHA512

f06d1eaf53b7027a768f24d15f8b9cf099145f77765c8ef6a8577f37633ccb147f6d3038a46bce5c21de65b6bd78ab14636d6d233497210af07b2923a0b0c4c7
SSDEEP

12288:JwlQbmomPZefXPtqvyuQwYvCYDAD9AxDZCCjM+9MQJQv8vgUycEn/z:iomxiXQFwv1M9KDZCIMpQDgUDyz

Score

10^/10

formbook 06eh rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

06eh

Decoy

LFsv6dX2ii6R8OphWwptZ9Uy+geJcQ==

F2g1Ra3riiwsEeceZ+kPoyzVyQ==

m7+bOE66nh10jg==

Dyb/VMcRh6yNuvVNwJjlrzs=

3yNAvKD3bmuj1Q4=

K7hi/htWsKfW6xc=

sqpSY7/gcvvY0tm0tWucCg==

LnSqfZJAUour0Qo=

Il4dO5W4JE9OlQYNbHc=

LUYTY9QKZHZPe74hTaa/ljM=

Qg6iySJSuuTgNcboVm4=

SJkvGoebIdDEsJn9AI7yPbNK

DKBLqQM7m6oaUKM84/sIFQ==

GOOzpszYDX9lkuZQ5pmdrDDeyg==

V5064wgZl0G1DxNTv5jlrzs=

Onlr5MMHSXuH/91V

oddlSLzpBTyiCAtcvmSS

ITsUV4Gw/mkWaGLjCHs=

HqWBQYO4SQBinnio6GmL

tDrGMY3MC5e1KdgFRw==

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:

fifth.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation fifth.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

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	fifth.exe

Suspicious use of SetThreadContext 5 IoCs

Processes:

fifth.exefifth.exewscript.exe

description	pid	process	target process
PID 3352 set thread context of 4468	3352	fifth.exe	fifth.exe
PID 4468 set thread context of 772	4468	fifth.exe	Explorer.EXE
PID 4468 set thread context of 772	4468	fifth.exe	Explorer.EXE
PID 4640 set thread context of 772	4640	wscript.exe	Explorer.EXE
PID 4640 set thread context of 1752	4640	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-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wscript.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

Processes:

fifth.exewscript.exe

pid	process
4468	fifth.exe
4468	fifth.exe
4468	fifth.exe
4468	fifth.exe
4468	fifth.exe
4468	fifth.exe
4468	fifth.exe
4468	fifth.exe
4468	fifth.exe
4468	fifth.exe
4640	wscript.exe
4640	wscript.exe
4640	wscript.exe
4640	wscript.exe
4640	wscript.exe
4640	wscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

772 Explorer.EXE
Suspicious behavior: MapViewOfSection 9 IoCs

Processes:

fifth.exewscript.exe

pid process

4468 fifth.exe
4468 fifth.exe
4468 fifth.exe
4468 fifth.exe
4640 wscript.exe
4640 wscript.exe
4640 wscript.exe
4640 wscript.exe
4640 wscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

fifth.exewscript.exe

description pid process

Token: SeDebugPrivilege 4468 fifth.exe
Token: SeDebugPrivilege 4640 wscript.exe

pid	process
772	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	4468	fifth.exe
Token: SeDebugPrivilege	4640	wscript.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

fifth.exeExplorer.EXEwscript.exe

description	pid	process	target process
PID 3352 wrote to memory of 4468	3352	fifth.exe	fifth.exe
PID 3352 wrote to memory of 4468	3352	fifth.exe	fifth.exe
PID 3352 wrote to memory of 4468	3352	fifth.exe	fifth.exe
PID 3352 wrote to memory of 4468	3352	fifth.exe	fifth.exe
PID 3352 wrote to memory of 4468	3352	fifth.exe	fifth.exe
PID 3352 wrote to memory of 4468	3352	fifth.exe	fifth.exe
PID 772 wrote to memory of 4640	772	Explorer.EXE	wscript.exe
PID 772 wrote to memory of 4640	772	Explorer.EXE	wscript.exe
PID 772 wrote to memory of 4640	772	Explorer.EXE	wscript.exe
PID 772 wrote to memory of 1752	772	Explorer.EXE	explorer.exe
PID 772 wrote to memory of 1752	772	Explorer.EXE	explorer.exe
PID 772 wrote to memory of 1752	772	Explorer.EXE	explorer.exe
PID 4640 wrote to memory of 2996	4640	wscript.exe	Firefox.exe
PID 4640 wrote to memory of 2996	4640	wscript.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:772
- C:\Users\Admin\AppData\Local\Temp\fifth.exe
  "C:\Users\Admin\AppData\Local\Temp\fifth.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3352
- - C:\Users\Admin\AppData\Local\Temp\fifth.exe
    "C:\Users\Admin\AppData\Local\Temp\fifth.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4468
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\SysWOW64\explorer.exe"
  2⤵
  PID:1752
- 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:4640
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2996

Network

MITRE ATT&CK Enterprise 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

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/772-145-0x0000000002FC0000-0x00000000030B9000-memory.dmp

Filesize
996KB

Download
memory/772-160-0x0000000008F40000-0x0000000009076000-memory.dmp

Filesize
1.2MB

Download
memory/772-157-0x0000000008F40000-0x0000000009076000-memory.dmp

Filesize
1.2MB

Download
memory/772-155-0x0000000008250000-0x00000000083C4000-memory.dmp

Filesize
1.5MB

Download
memory/772-150-0x0000000008250000-0x00000000083C4000-memory.dmp

Filesize
1.5MB

Download
memory/1752-159-0x0000000000000000-mapping.dmp

Download
memory/3352-133-0x0000000005C30000-0x00000000061D4000-memory.dmp

Filesize
5.6MB

Download
memory/3352-134-0x0000000005720000-0x00000000057B2000-memory.dmp

Filesize
584KB

Download
memory/3352-135-0x00000000058C0000-0x00000000058CA000-memory.dmp

Filesize
40KB

Download
memory/3352-136-0x00000000077E0000-0x000000000787C000-memory.dmp

Filesize
624KB

Download
memory/3352-132-0x0000000000CC0000-0x0000000000D7E000-memory.dmp

Filesize
760KB

Download
memory/4468-146-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4468-141-0x0000000000401000-0x000000000042E000-memory.dmp

Filesize
180KB

Download
memory/4468-147-0x0000000001050000-0x0000000001060000-memory.dmp

Filesize
64KB

Download
memory/4468-148-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4468-149-0x0000000000401000-0x000000000042E000-memory.dmp

Filesize
180KB

Download
memory/4468-143-0x0000000001160000-0x00000000014AA000-memory.dmp

Filesize
3.3MB

Download
memory/4468-137-0x0000000000000000-mapping.dmp

Download
memory/4468-138-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4468-140-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4468-144-0x0000000000FF0000-0x0000000001000000-memory.dmp

Filesize
64KB

Download
memory/4640-154-0x0000000002940000-0x0000000002C8A000-memory.dmp

Filesize
3.3MB

Download
memory/4640-153-0x00000000004E0000-0x000000000050D000-memory.dmp

Filesize
180KB

Download
memory/4640-156-0x0000000002840000-0x00000000028CF000-memory.dmp

Filesize
572KB

Download
memory/4640-158-0x00000000004E0000-0x000000000050D000-memory.dmp

Filesize
180KB

Download
memory/4640-152-0x0000000000530000-0x0000000000557000-memory.dmp

Filesize
156KB

Download
memory/4640-151-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads