formbook | c9fd4faec6e143563890f5fa1008ecf9d66fecfef294b883a65439dd71dd8b8f

General

Target

0133_3674633_83637598_3647,pdf.exe
Size

1.3MB
MD5

c3f45e9d88589b1ff6a362dddd17c55d
SHA1

92d450501abdeb9148dc5ae2fcf20cbb98451d12
SHA256

c9ccfbfa367975e9c021bb6dc0d0bd42b31922c328a46d8547e28f11c55c689e
SHA512

0e539f253b20c1a4d59a5b44e0417d18e22f58ca1f4fe1118048c47f05d5bd2a672d7aafb63ae8501569840f98e04d61e6e15ea35fd942c903612e516b938062
SSDEEP

24576:/7E1X+6AX8B26SLmfpL8qn/ytBgXfKnks1qUhVJR1IoIhI:/uX+6Ao2FaL5natBBnks1zLR1IoIhI

Score

10^/10

formbook ch24 discovery evasion rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ch24

Decoy

tmicp.com

lauriceiker.quest

neighbor-works.com

santiemprenderich.wiki

thecraftytxdogmom.com

abramolfactory.com

prettylittlesoles.com

thistimeandilove.space

imperialshaving.com

aflorideallgarden.com

thbfjs.com

marketmove.info

echocoins.com

ztkzw.com

sandyhookfishandribhouse.com

gamesxfr.com

frontline500.com

cbburrnet.com

boliviaoferta.com

jdzmklc.com

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2824-9-0x0000000000400000-0x0000000000459000-memory.dmp	formbook
behavioral1/memory/2824-14-0x0000000000400000-0x0000000000459000-memory.dmp	formbook
behavioral1/memory/2824-17-0x0000000000400000-0x0000000000459000-memory.dmp	formbook
behavioral1/memory/2752-23-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Looks for VirtualBox Guest Additions in registry 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Oracle\VirtualBox Guest Additions	0133_3674633_83637598_3647,pdf.exe

Looks for VMWare Tools registry key 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\VMware, Inc.\VMware Tools	0133_3674633_83637598_3647,pdf.exe

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	0133_3674633_83637598_3647,pdf.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	0133_3674633_83637598_3647,pdf.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	0133_3674633_83637598_3647,pdf.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\services\Disk\Enum\0	0133_3674633_83637598_3647,pdf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3036 set thread context of 2824	3036	0133_3674633_83637598_3647,pdf.exe	31
PID 2824 set thread context of 1196	2824	grpconv.exe	21
PID 2752 set thread context of 1196	2752	colorcpl.exe	21

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0133_3674633_83637598_3647,pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	grpconv.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	colorcpl.exe

Suspicious behavior: EnumeratesProcesses 41 IoCs

pid	Process
3036	0133_3674633_83637598_3647,pdf.exe
3036	0133_3674633_83637598_3647,pdf.exe
3036	0133_3674633_83637598_3647,pdf.exe
3036	0133_3674633_83637598_3647,pdf.exe
3036	0133_3674633_83637598_3647,pdf.exe
3036	0133_3674633_83637598_3647,pdf.exe
3036	0133_3674633_83637598_3647,pdf.exe
3036	0133_3674633_83637598_3647,pdf.exe
2824	grpconv.exe
2824	grpconv.exe
3036	0133_3674633_83637598_3647,pdf.exe
3036	0133_3674633_83637598_3647,pdf.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe
2752	colorcpl.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2824	grpconv.exe
2824	grpconv.exe
2824	grpconv.exe
2752	colorcpl.exe
2752	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	3036	0133_3674633_83637598_3647,pdf.exe
Token: SeDebugPrivilege	2824	grpconv.exe
Token: SeDebugPrivilege	2752	colorcpl.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3036 wrote to memory of 2824	3036	0133_3674633_83637598_3647,pdf.exe	31
PID 3036 wrote to memory of 2824	3036	0133_3674633_83637598_3647,pdf.exe	31
PID 3036 wrote to memory of 2824	3036	0133_3674633_83637598_3647,pdf.exe	31
PID 3036 wrote to memory of 2824	3036	0133_3674633_83637598_3647,pdf.exe	31
PID 3036 wrote to memory of 2824	3036	0133_3674633_83637598_3647,pdf.exe	31
PID 3036 wrote to memory of 2824	3036	0133_3674633_83637598_3647,pdf.exe	31
PID 3036 wrote to memory of 2824	3036	0133_3674633_83637598_3647,pdf.exe	31
PID 3036 wrote to memory of 2824	3036	0133_3674633_83637598_3647,pdf.exe	31
PID 1196 wrote to memory of 2752	1196	Explorer.EXE	32
PID 1196 wrote to memory of 2752	1196	Explorer.EXE	32
PID 1196 wrote to memory of 2752	1196	Explorer.EXE	32
PID 1196 wrote to memory of 2752	1196	Explorer.EXE	32
PID 2752 wrote to memory of 2584	2752	colorcpl.exe	33
PID 2752 wrote to memory of 2584	2752	colorcpl.exe	33
PID 2752 wrote to memory of 2584	2752	colorcpl.exe	33
PID 2752 wrote to memory of 2584	2752	colorcpl.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1196
- C:\Users\Admin\AppData\Local\Temp\0133_3674633_83637598_3647,pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\0133_3674633_83637598_3647,pdf.exe"
  2⤵
  - Looks for VirtualBox Guest Additions in registry
  - Looks for VMWare Tools registry key
  - Checks BIOS information in registry
  - Maps connected drives based on registry
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3036
- - C:\Windows\SysWOW64\grpconv.exe
    "C:\Windows\SysWOW64\grpconv.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2824
- 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:2752
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\grpconv.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Peripheral Device Discovery

Query Registry

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1196-19-0x00000000051B0000-0x0000000005282000-memory.dmp

Filesize
840KB

Download
memory/1196-24-0x00000000051B0000-0x0000000005282000-memory.dmp

Filesize
840KB

Download
memory/2752-23-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2752-22-0x0000000000910000-0x0000000000928000-memory.dmp

Filesize
96KB

Download
memory/2752-21-0x0000000000910000-0x0000000000928000-memory.dmp

Filesize
96KB

Download
memory/2824-18-0x00000000001A0000-0x00000000001B4000-memory.dmp

Filesize
80KB

Download
memory/2824-5-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2824-9-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2824-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2824-14-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2824-15-0x0000000000960000-0x0000000000C63000-memory.dmp

Filesize
3.0MB

Download
memory/2824-17-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/2824-7-0x0000000000400000-0x0000000000459000-memory.dmp

Filesize
356KB

Download
memory/3036-0-0x0000000074A4E000-0x0000000074A4F000-memory.dmp

Filesize
4KB

Download
memory/3036-20-0x0000000074A40000-0x000000007512E000-memory.dmp

Filesize
6.9MB

Download
memory/3036-4-0x0000000074A40000-0x000000007512E000-memory.dmp

Filesize
6.9MB

Download
memory/3036-3-0x00000000003E0000-0x000000000041C000-memory.dmp

Filesize
240KB

Download
memory/3036-2-0x0000000004820000-0x00000000048E0000-memory.dmp

Filesize
768KB

Download
memory/3036-1-0x0000000000A10000-0x0000000000B68000-memory.dmp

Filesize
1.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads