formbook | 9b47637ecdf8e69614cb8ab22f9bddc0cc1719eca7f6ae87b0e988b9fb1cfdce

Analysis

max time kernel
149s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 09:11

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General

Target

09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe
Size

726KB
MD5

09ef9306539a1cd532d9985f3a2856a6
SHA1

3b2c26fff9fbdd0f44eb7d06400c7b0db5c2241b
SHA256

9b47637ecdf8e69614cb8ab22f9bddc0cc1719eca7f6ae87b0e988b9fb1cfdce
SHA512

e25d7ac4323e52ad13e9f9729f3a626f2d325d5990a0687fd1f59b87e06b9bca107c2fe5ac12c3a7c1dd92342c2b0887271f101dfd721f862b83de1048c5960b
SSDEEP

12288:jXfpEdonTdVMYlCZ/PbrabB5wCeSS6l/r1HWW6uPh7zZh5:jXfpEdonTdu8a/PbrkB5wVSBl/r1HWWP

Score

10^/10

formbook private discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.8

Campaign

private

Decoy

evilunderworldmall.com

davidovicmirko.com

incrediblechildrenscostume.com

langsgo.com

ibex-japan.com

findhotel.coupons

logo8536.com

meyerparkdental.com

digitaltoken.exchange

chatramuetaiwan.com

yulibao.net

michaelandcolaw.com

sapeur-hairfactory.net

louisianamodernsmiles.com

finleighelderton.com

knlwpaj.download

directorionacionaldesalud.com

sdasdfasdfasdf45.com

hefeihuli.com

woxa.ltd

Signatures

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/4548-5-0x00000000051F0000-0x000000000521A000-memory.dmp	formbook
behavioral2/memory/3492-11-0x0000000000400000-0x000000000042A000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4548 set thread context of 3492	4548	09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe	82
PID 3492 set thread context of 3256	3492	RegAsm.exe	55
PID 4456 set thread context of 3256	4456	systray.exe	55

System Location Discovery: System Language Discovery 1 TTPs 4 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	09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
4548	09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe
4548	09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe
3492	RegAsm.exe
3492	RegAsm.exe
3492	RegAsm.exe
3492	RegAsm.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe
4456	systray.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
3492	RegAsm.exe
3492	RegAsm.exe
3492	RegAsm.exe
4456	systray.exe
4456	systray.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	4548	09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe
Token: SeDebugPrivilege	3492	RegAsm.exe
Token: SeDebugPrivilege	4456	systray.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4548 wrote to memory of 3492	4548	09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe	82
PID 4548 wrote to memory of 3492	4548	09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe	82
PID 4548 wrote to memory of 3492	4548	09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe	82
PID 4548 wrote to memory of 3492	4548	09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe	82
PID 4548 wrote to memory of 3492	4548	09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe	82
PID 4548 wrote to memory of 3492	4548	09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe	82
PID 3256 wrote to memory of 4456	3256	Explorer.EXE	83
PID 3256 wrote to memory of 4456	3256	Explorer.EXE	83
PID 3256 wrote to memory of 4456	3256	Explorer.EXE	83
PID 4456 wrote to memory of 3520	4456	systray.exe	84
PID 4456 wrote to memory of 3520	4456	systray.exe	84
PID 4456 wrote to memory of 3520	4456	systray.exe	84

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3256
- C:\Users\Admin\AppData\Local\Temp\09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe
  "C:\Users\Admin\AppData\Local\Temp\09ef9306539a1cd532d9985f3a2856a6_JaffaCakes118.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4548
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3492
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4456
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3520

Network

MITRE ATT&CK Enterprise v15

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

memory/3256-16-0x00000000085B0000-0x0000000008713000-memory.dmp

Filesize
1.4MB

Download
memory/3256-20-0x0000000008B60000-0x0000000008CAB000-memory.dmp

Filesize
1.3MB

Download
memory/3256-23-0x0000000008B60000-0x0000000008CAB000-memory.dmp

Filesize
1.3MB

Download
memory/3256-21-0x0000000008B60000-0x0000000008CAB000-memory.dmp

Filesize
1.3MB

Download
memory/3256-13-0x00000000085B0000-0x0000000008713000-memory.dmp

Filesize
1.4MB

Download
memory/3492-9-0x0000000002B00000-0x0000000002E4A000-memory.dmp

Filesize
3.3MB

Download
memory/3492-12-0x0000000000F60000-0x0000000000F74000-memory.dmp

Filesize
80KB

Download
memory/3492-11-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4456-15-0x00000000007E0000-0x00000000007E6000-memory.dmp

Filesize
24KB

Download
memory/4456-14-0x00000000007E0000-0x00000000007E6000-memory.dmp

Filesize
24KB

Download
memory/4548-1-0x0000000000970000-0x0000000000A2A000-memory.dmp

Filesize
744KB

Download
memory/4548-5-0x00000000051F0000-0x000000000521A000-memory.dmp

Filesize
168KB

Download
memory/4548-0-0x000000007516E000-0x000000007516F000-memory.dmp

Filesize
4KB

Download
memory/4548-6-0x00000000054E0000-0x000000000557C000-memory.dmp

Filesize
624KB

Download
memory/4548-3-0x00000000013B0000-0x00000000013BC000-memory.dmp

Filesize
48KB

Download
memory/4548-2-0x00000000051A0000-0x00000000051DA000-memory.dmp

Filesize
232KB

Download