formbook | 20d9be346790cfffad9047726a9a87329a29ee6661ffa16643d5538a279f251d

Analysis

max time kernel
145s
max time network
143s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
04-09-2024 02:45

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General

Target

tTbQa71UeNsVrSr.exe
Size

658KB
MD5

cab065bec52b2ff086ef33b66a87213d
SHA1

3b7dcaad22ba6adf5da170ecdc6c96975f47055d
SHA256

7dbfe3e815092dfd471861a962bbb464ec76438144f4cb5dd031b02eda2f8ea9
SHA512

eca654e71054401cabe7b4c573abc39c578e4c16b985f8762d5e47191ac0d0c30549969a88e9c95ee5ef2942656bbf1a2874a6cdab3febf47c81dba68c39c262
SSDEEP

12288:s0mt8/WAgeS8+dypaxRF/Q4sZjEoXNVT7YS6IXD0:sXomh8+EG/ANVT7YS62

Score

10^/10

formbook b31a discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

b31a

Decoy

enjamin-paaac.buzz

mail-marketing-40950.bond

pusems28-post.cyou

hindo.top

ruck-company-be.today

asinos-deutschland.net

ewancash.boats

etdopovo.casino

rcher-saaac.buzz

871166.vip

manuel.app

g3yqo.shop

-9way.xyz

qawgytfexe.bond

iefi6834.vip

ental-health-35901.bond

idat-merkez18.top

rojectleadzone.website

lirudolph.top

migloballlc.online

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4576-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4576-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/5036-21-0x0000000000E80000-0x0000000000EAF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1868 set thread context of 4576	1868	tTbQa71UeNsVrSr.exe	93
PID 4576 set thread context of 3456	4576	tTbQa71UeNsVrSr.exe	56
PID 5036 set thread context of 3456	5036	colorcpl.exe	56

System Location Discovery: System Language Discovery 1 TTPs 3 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	tTbQa71UeNsVrSr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	colorcpl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
1868	tTbQa71UeNsVrSr.exe
1868	tTbQa71UeNsVrSr.exe
4576	tTbQa71UeNsVrSr.exe
4576	tTbQa71UeNsVrSr.exe
4576	tTbQa71UeNsVrSr.exe
4576	tTbQa71UeNsVrSr.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe
5036	colorcpl.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
4576	tTbQa71UeNsVrSr.exe
4576	tTbQa71UeNsVrSr.exe
4576	tTbQa71UeNsVrSr.exe
5036	colorcpl.exe
5036	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	1868	tTbQa71UeNsVrSr.exe
Token: SeDebugPrivilege	4576	tTbQa71UeNsVrSr.exe
Token: SeDebugPrivilege	5036	colorcpl.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3456	Explorer.EXE

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 4576	1868	tTbQa71UeNsVrSr.exe	93
PID 1868 wrote to memory of 4576	1868	tTbQa71UeNsVrSr.exe	93
PID 1868 wrote to memory of 4576	1868	tTbQa71UeNsVrSr.exe	93
PID 1868 wrote to memory of 4576	1868	tTbQa71UeNsVrSr.exe	93
PID 1868 wrote to memory of 4576	1868	tTbQa71UeNsVrSr.exe	93
PID 1868 wrote to memory of 4576	1868	tTbQa71UeNsVrSr.exe	93
PID 3456 wrote to memory of 5036	3456	Explorer.EXE	94
PID 3456 wrote to memory of 5036	3456	Explorer.EXE	94
PID 3456 wrote to memory of 5036	3456	Explorer.EXE	94
PID 5036 wrote to memory of 4516	5036	colorcpl.exe	95
PID 5036 wrote to memory of 4516	5036	colorcpl.exe	95
PID 5036 wrote to memory of 4516	5036	colorcpl.exe	95

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3456
- C:\Users\Admin\AppData\Local\Temp\tTbQa71UeNsVrSr.exe
  "C:\Users\Admin\AppData\Local\Temp\tTbQa71UeNsVrSr.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Users\Admin\AppData\Local\Temp\tTbQa71UeNsVrSr.exe
    "C:\Users\Admin\AppData\Local\Temp\tTbQa71UeNsVrSr.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4576
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.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:5036
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\tTbQa71UeNsVrSr.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4516

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/1868-13-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/1868-0-0x000000007524E000-0x000000007524F000-memory.dmp

Filesize
4KB

Download
memory/1868-2-0x00000000059A0000-0x0000000005F44000-memory.dmp

Filesize
5.6MB

Download
memory/1868-3-0x00000000053F0000-0x0000000005482000-memory.dmp

Filesize
584KB

Download
memory/1868-5-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/1868-4-0x0000000005490000-0x000000000549A000-memory.dmp

Filesize
40KB

Download
memory/1868-6-0x0000000005920000-0x0000000005938000-memory.dmp

Filesize
96KB

Download
memory/1868-7-0x000000007524E000-0x000000007524F000-memory.dmp

Filesize
4KB

Download
memory/1868-8-0x0000000075240000-0x00000000759F0000-memory.dmp

Filesize
7.7MB

Download
memory/1868-9-0x0000000006650000-0x00000000066C6000-memory.dmp

Filesize
472KB

Download
memory/1868-10-0x00000000068A0000-0x000000000693C000-memory.dmp

Filesize
624KB

Download
memory/1868-1-0x0000000000960000-0x0000000000A0A000-memory.dmp

Filesize
680KB

Download
memory/3456-26-0x0000000008530000-0x0000000008642000-memory.dmp

Filesize
1.1MB

Download
memory/3456-18-0x00000000028E0000-0x000000000299A000-memory.dmp

Filesize
744KB

Download
memory/3456-22-0x00000000028E0000-0x000000000299A000-memory.dmp

Filesize
744KB

Download
memory/3456-27-0x0000000008530000-0x0000000008642000-memory.dmp

Filesize
1.1MB

Download
memory/3456-29-0x0000000008530000-0x0000000008642000-memory.dmp

Filesize
1.1MB

Download
memory/4576-14-0x0000000001970000-0x0000000001CBA000-memory.dmp

Filesize
3.3MB

Download
memory/4576-17-0x0000000001870000-0x0000000001884000-memory.dmp

Filesize
80KB

Download
memory/4576-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4576-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/5036-19-0x0000000000F80000-0x0000000000F99000-memory.dmp

Filesize
100KB

Download
memory/5036-20-0x0000000000F80000-0x0000000000F99000-memory.dmp

Filesize
100KB

Download
memory/5036-21-0x0000000000E80000-0x0000000000EAF000-memory.dmp

Filesize
188KB

Download