formbook | 5b24cd0bee40fbc64c05e75ae25859385403d66e2bfa94cc54e23660586e6f1c

General

Target

5b24cd0bee40fbc64c05e75ae25859385403d66e2bfa94cc54e23660586e6f1c.exe
Size

236KB
MD5

c50a2cc60d44200eb6c7573c4c422873
SHA1

0ddc105fdf443d24f56e013e55828ed111df3270
SHA256

5b24cd0bee40fbc64c05e75ae25859385403d66e2bfa94cc54e23660586e6f1c
SHA512

b5bc4deec050a33909eabde3e76f641f30dd97cf6593f34e3920c01ef96512ec6a00a7059a3991d9a0408119829c6794131897c61c60c69c7b694e17002512e4
SSDEEP

6144:qNSGIR41RPlyHW93igGDeT01awFKrQpap:6SGe41BlB93nTOTKaa

Score

10^/10

formbook ugez rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

ugez

Decoy

LgjapC4PTUnlPZWoC2UR5y8=

YMcK0wipjKwrmU7k

L5jlvYmPL3umP9c=

4rk/LiDD0RVVSIeRjZIUL0yl

AGSrXyvwS7a8fQEgidyDSzLHVenNiQ==

AtaekTjB3r2qqTfZQ+nnfLfTpA==

Q9I1IDrVM5RLBER0xA==

NEdf4hHw/2eq

+4rt0uLIddbs7Ndu0w==

heAb+B+SqeStNcPpzt3FhJrTev0=

OZ6kdeZpuv0Y6fXR/wTX

6sB4ZTgDPyMyIl37yOxispUQrOYd6yM=

OiarhHzxBOZn+Yqoi6hAT2mv

tVdc2q/vCrrutQ==

8t1UGhc2L3umP9c=

rJgg1o0wO6Voug==

l4NQQt5dsBqlgcvs

mCeljHYpvxG2NOv3c+XRoEs2O0vhgQ==

a84dAkkSZ2X6NEdbRRAo7yobFJTz

06yBZcaFMnD6SoWoj6hAT2mv

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
52	4300	cscript.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

description	pid	Process	procid_target
PID 4836 set thread context of 4768	4836	5b24cd0bee40fbc64c05e75ae25859385403d66e2bfa94cc54e23660586e6f1c.exe	83
PID 4768 set thread context of 1040	4768	cvtres.exe	38
PID 4300 set thread context of 1040	4300	cscript.exe	38

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

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

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
4768	cvtres.exe
4768	cvtres.exe
4768	cvtres.exe
4768	cvtres.exe
4768	cvtres.exe
4768	cvtres.exe
4768	cvtres.exe
4768	cvtres.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1040	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
4768	cvtres.exe
4768	cvtres.exe
4768	cvtres.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe
4300	cscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4768	cvtres.exe
Token: SeDebugPrivilege	4300	cscript.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4836 wrote to memory of 4768	4836	5b24cd0bee40fbc64c05e75ae25859385403d66e2bfa94cc54e23660586e6f1c.exe	83
PID 4836 wrote to memory of 4768	4836	5b24cd0bee40fbc64c05e75ae25859385403d66e2bfa94cc54e23660586e6f1c.exe	83
PID 4836 wrote to memory of 4768	4836	5b24cd0bee40fbc64c05e75ae25859385403d66e2bfa94cc54e23660586e6f1c.exe	83
PID 4836 wrote to memory of 4768	4836	5b24cd0bee40fbc64c05e75ae25859385403d66e2bfa94cc54e23660586e6f1c.exe	83
PID 4836 wrote to memory of 4768	4836	5b24cd0bee40fbc64c05e75ae25859385403d66e2bfa94cc54e23660586e6f1c.exe	83
PID 4836 wrote to memory of 4768	4836	5b24cd0bee40fbc64c05e75ae25859385403d66e2bfa94cc54e23660586e6f1c.exe	83
PID 1040 wrote to memory of 4300	1040	Explorer.EXE	84
PID 1040 wrote to memory of 4300	1040	Explorer.EXE	84
PID 1040 wrote to memory of 4300	1040	Explorer.EXE	84
PID 4300 wrote to memory of 4340	4300	cscript.exe	85
PID 4300 wrote to memory of 4340	4300	cscript.exe	85
PID 4300 wrote to memory of 4340	4300	cscript.exe	85

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1040
- C:\Users\Admin\AppData\Local\Temp\5b24cd0bee40fbc64c05e75ae25859385403d66e2bfa94cc54e23660586e6f1c.exe
  "C:\Users\Admin\AppData\Local\Temp\5b24cd0bee40fbc64c05e75ae25859385403d66e2bfa94cc54e23660586e6f1c.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4836
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4768
- C:\Windows\SysWOW64\cscript.exe
  "C:\Windows\SysWOW64\cscript.exe"
  2⤵
  - Blocklisted process makes network request
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4300
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4340

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

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1040-147-0x0000000003860000-0x00000000038F5000-memory.dmp

Filesize
596KB

Download
memory/1040-145-0x0000000003860000-0x00000000038F5000-memory.dmp

Filesize
596KB

Download
memory/1040-138-0x0000000008680000-0x0000000008804000-memory.dmp

Filesize
1.5MB

Download
memory/4300-143-0x00000000024B0000-0x00000000027FA000-memory.dmp

Filesize
3.3MB

Download
memory/4300-146-0x0000000000220000-0x000000000024B000-memory.dmp

Filesize
172KB

Download
memory/4300-144-0x0000000002310000-0x000000000239F000-memory.dmp

Filesize
572KB

Download
memory/4300-141-0x0000000000250000-0x0000000000277000-memory.dmp

Filesize
156KB

Download
memory/4300-142-0x0000000000220000-0x000000000024B000-memory.dmp

Filesize
172KB

Download
memory/4768-136-0x0000000001690000-0x00000000019DA000-memory.dmp

Filesize
3.3MB

Download
memory/4768-140-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4768-137-0x0000000001230000-0x0000000001240000-memory.dmp

Filesize
64KB

Download
memory/4768-134-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/4836-132-0x0000000000D70000-0x0000000000DAE000-memory.dmp

Filesize
248KB

Download

Analysis

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