formbook | a96c7253cab161d289efdea709091608649deeb1423a4df65d1cd13ad28642ae

General

Target

MalwareBazaar.exe
Size

651KB
MD5

622fec48546a83b6c146074a7c6de40d
SHA1

3cc90d360795455fa69b6bf12ccf36ae0e09106e
SHA256

a96c7253cab161d289efdea709091608649deeb1423a4df65d1cd13ad28642ae
SHA512

fe3048d55396bfea180146a37225cd42f8bcc21cf56cec063f02fb5a48b52bf9f316a072adb6733fc52488b21987d4f19b0262010cc1caa803343785892bed04
SSDEEP

12288:3tJ6BgKTNRh02gF64s3leiYpIRsLI4L0i/xgQnrQstn8CMEaSLIMz+t:3tJofHgF83siW04L0i/xgKftn8CMEpLy

Score

10^/10

formbook de94 credential_access discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

de94

Decoy

gx899.top

whoistommy.info

vabex.shop

vduwum.rest

betbox2351.com

ch3kat0.online

kaduexpress.com

sibonline.shop

bt365918.com

betterlabs.app

denversandandgravel.net

webzlp.xyz

tdodtn263q.xyz

zamaninvest.com

vcxwpo.xyz

myastrolyfe.com

lsm8v87jnkrqcnr.buzz

ilregnodellecozze.com

auroraskynholistics.com

sewassist.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2512-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2512-14-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2512-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2752-25-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2036 set thread context of 2512	2036	MalwareBazaar.exe	31
PID 2512 set thread context of 1200	2512	MalwareBazaar.exe	21
PID 2512 set thread context of 1200	2512	MalwareBazaar.exe	21
PID 2752 set thread context of 1200	2752	systray.exe	21

System Location Discovery: System Language Discovery 1 TTPs 2 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	MalwareBazaar.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	systray.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3502430532-24693940-2469786940-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	systray.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
2512	MalwareBazaar.exe
2512	MalwareBazaar.exe
2512	MalwareBazaar.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
2512	MalwareBazaar.exe
2512	MalwareBazaar.exe
2512	MalwareBazaar.exe
2512	MalwareBazaar.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe
2752	systray.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2512	MalwareBazaar.exe
Token: SeDebugPrivilege	2752	systray.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2036 wrote to memory of 2512	2036	MalwareBazaar.exe	31
PID 2036 wrote to memory of 2512	2036	MalwareBazaar.exe	31
PID 2036 wrote to memory of 2512	2036	MalwareBazaar.exe	31
PID 2036 wrote to memory of 2512	2036	MalwareBazaar.exe	31
PID 2036 wrote to memory of 2512	2036	MalwareBazaar.exe	31
PID 2036 wrote to memory of 2512	2036	MalwareBazaar.exe	31
PID 2036 wrote to memory of 2512	2036	MalwareBazaar.exe	31
PID 1200 wrote to memory of 2752	1200	Explorer.EXE	32
PID 1200 wrote to memory of 2752	1200	Explorer.EXE	32
PID 1200 wrote to memory of 2752	1200	Explorer.EXE	32
PID 1200 wrote to memory of 2752	1200	Explorer.EXE	32
PID 2752 wrote to memory of 2648	2752	systray.exe	33
PID 2752 wrote to memory of 2648	2752	systray.exe	33
PID 2752 wrote to memory of 2648	2752	systray.exe	33
PID 2752 wrote to memory of 2648	2752	systray.exe	33
PID 2752 wrote to memory of 2648	2752	systray.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
  "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2036
- - C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe
    "C:\Users\Admin\AppData\Local\Temp\MalwareBazaar.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2512
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2752
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2648

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1200-19-0x00000000000F0000-0x00000000001F0000-memory.dmp

Filesize
1024KB

Download
memory/1200-32-0x0000000007430000-0x00000000075AB000-memory.dmp

Filesize
1.5MB

Download
memory/1200-31-0x0000000004E00000-0x0000000004F1A000-memory.dmp

Filesize
1.1MB

Download
memory/1200-22-0x0000000007430000-0x00000000075AB000-memory.dmp

Filesize
1.5MB

Download
memory/1200-16-0x00000000000F0000-0x00000000001F0000-memory.dmp

Filesize
1024KB

Download
memory/1200-17-0x0000000004E00000-0x0000000004F1A000-memory.dmp

Filesize
1.1MB

Download
memory/2036-1-0x00000000011C0000-0x0000000001268000-memory.dmp

Filesize
672KB

Download
memory/2036-2-0x0000000074A70000-0x000000007515E000-memory.dmp

Filesize
6.9MB

Download
memory/2036-3-0x0000000000490000-0x00000000004A2000-memory.dmp

Filesize
72KB

Download
memory/2036-4-0x0000000000550000-0x000000000055E000-memory.dmp

Filesize
56KB

Download
memory/2036-5-0x0000000000F60000-0x0000000000FD6000-memory.dmp

Filesize
472KB

Download
memory/2036-11-0x0000000074A70000-0x000000007515E000-memory.dmp

Filesize
6.9MB

Download
memory/2036-0-0x0000000074A7E000-0x0000000074A7F000-memory.dmp

Filesize
4KB

Download
memory/2512-15-0x0000000000310000-0x0000000000325000-memory.dmp

Filesize
84KB

Download
memory/2512-14-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2512-12-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Filesize
3.0MB

Download
memory/2512-7-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2512-8-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2512-21-0x0000000000350000-0x0000000000365000-memory.dmp

Filesize
84KB

Download
memory/2512-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2512-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2512-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2752-24-0x00000000005A0000-0x00000000005A5000-memory.dmp

Filesize
20KB

Download
memory/2752-23-0x00000000005A0000-0x00000000005A5000-memory.dmp

Filesize
20KB

Download
memory/2752-25-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing