formbook | 4b1ec6b6a71ae7ee68473618eb3a506f6e9fbb3be4bdd3a77aee3a940518378a

Analysis

max time kernel
149s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-12-2024 14:14

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General

Target

Doc_0323211.exe
Size

1.5MB
MD5

207e1c712597de0900f79e262f59d632
SHA1

c38d153841d5d05a10ff2e55e8de6753caae978f
SHA256

48d22944fdf7cf66fd1423b6ab2dd0143d96b4db7915e088088b8f826d46b000
SHA512

0dd72b044bd2a79a5a55c1a11f7523862f6139ca45e8809e0add0f3fc3e791215d8e634d364ffed7e21337dad9b791dd24905d408a9e62e7eeb465e7f0e4596c
SSDEEP

24576:vAHnh+eWsN3skA4RV1Hom2KXMmHalWKkowX38bOC+dfJvcyPUlO85E5:Sh+ZkldoPK8YaYSwX2z+dfJvcyTF

Score

10^/10

formbook 3nop discovery persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

3nop

Decoy

bakecakesandmore.com

shenglisuoye.com

chinapopfactory.com

ynlrhd.com

liqourforyou.com

leonqamil.com

meccafon.com

online-marketing-strategie.biz

rbfxi.com

frseyb.info

leyu91.com

hotsmail.today

beepot.tech

dunaemmetmobility.com

sixpenceworkshop.com

incrediblefavorcoaching.com

pofo.info

yanshudaili.com

yellowbrickwedding.com

paintpartyblueprint.com

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/3056-5-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral2/memory/3056-8-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral2/memory/3056-12-0x0000000000400000-0x000000000042D000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	cmd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\RRSD5TBPUB7 = "C:\\Program Files (x86)\\Gyr0xgl\\obkxkxd094fp.exe"	cmd.exe

Drops startup file 1 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\SrTasks.url	Doc_0323211.exe

Reads user/profile data of web browsers 3 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Credentials from Web Browsers
T1555.003

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2132 set thread context of 3056	2132	Doc_0323211.exe	83
PID 3056 set thread context of 3416	3056	Doc_0323211.exe	56
PID 3056 set thread context of 3416	3056	Doc_0323211.exe	56
PID 4696 set thread context of 3416	4696	cmd.exe	56

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Gyr0xgl\obkxkxd094fp.exe	cmd.exe

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	Doc_0323211.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmd.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
3056	Doc_0323211.exe
3056	Doc_0323211.exe
3056	Doc_0323211.exe
3056	Doc_0323211.exe
3056	Doc_0323211.exe
3056	Doc_0323211.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe

Suspicious behavior: MapViewOfSection 10 IoCs

pid	Process
2132	Doc_0323211.exe
2132	Doc_0323211.exe
3056	Doc_0323211.exe
3056	Doc_0323211.exe
3056	Doc_0323211.exe
3056	Doc_0323211.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe
4696	cmd.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	Doc_0323211.exe
Token: SeDebugPrivilege	4696	cmd.exe
Token: SeShutdownPrivilege	3416	Explorer.EXE
Token: SeCreatePagefilePrivilege	3416	Explorer.EXE
Token: SeShutdownPrivilege	3416	Explorer.EXE
Token: SeCreatePagefilePrivilege	3416	Explorer.EXE

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
2132	Doc_0323211.exe
2132	Doc_0323211.exe
2132	Doc_0323211.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
2132	Doc_0323211.exe
2132	Doc_0323211.exe
2132	Doc_0323211.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 764	2132	Doc_0323211.exe	82
PID 2132 wrote to memory of 764	2132	Doc_0323211.exe	82
PID 2132 wrote to memory of 764	2132	Doc_0323211.exe	82
PID 2132 wrote to memory of 3056	2132	Doc_0323211.exe	83
PID 2132 wrote to memory of 3056	2132	Doc_0323211.exe	83
PID 2132 wrote to memory of 3056	2132	Doc_0323211.exe	83
PID 2132 wrote to memory of 3056	2132	Doc_0323211.exe	83
PID 3416 wrote to memory of 4696	3416	Explorer.EXE	84
PID 3416 wrote to memory of 4696	3416	Explorer.EXE	84
PID 3416 wrote to memory of 4696	3416	Explorer.EXE	84
PID 4696 wrote to memory of 2928	4696	cmd.exe	85
PID 4696 wrote to memory of 2928	4696	cmd.exe	85
PID 4696 wrote to memory of 2928	4696	cmd.exe	85
PID 4696 wrote to memory of 4584	4696	cmd.exe	96
PID 4696 wrote to memory of 4584	4696	cmd.exe	96
PID 4696 wrote to memory of 4584	4696	cmd.exe	96
PID 4696 wrote to memory of 2236	4696	cmd.exe	98
PID 4696 wrote to memory of 2236	4696	cmd.exe	98
PID 4696 wrote to memory of 2236	4696	cmd.exe	98

System policy modification 1 TTPs 1 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3416
- C:\Users\Admin\AppData\Local\Temp\Doc_0323211.exe
  "C:\Users\Admin\AppData\Local\Temp\Doc_0323211.exe"
  2⤵
  - Drops startup file
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2132
- - C:\Users\Admin\AppData\Local\Temp\Doc_0323211.exe
    "C:\Users\Admin\AppData\Local\Temp\Doc_0323211.exe"
    3⤵
    PID:764
- - C:\Users\Admin\AppData\Local\Temp\Doc_0323211.exe
    "C:\Users\Admin\AppData\Local\Temp\Doc_0323211.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3056
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.exe"
  2⤵
  - Adds policy Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  - System policy modification
  PID:4696
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Doc_0323211.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2928
- - C:\Windows\SysWOW64\cmd.exe
    /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4584
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:2236

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\DB1

Filesize
40KB

MD5
a182561a527f929489bf4b8f74f65cd7

SHA1
8cd6866594759711ea1836e86a5b7ca64ee8911f

SHA256
42aad7886965428a941508b776a666a4450eb658cb90e80fae1e7457fc71f914

SHA512
9bc3bf5a82f6f057e873adebd5b7a4c64adef966537ab9c565fe7c4bb3582e2e485ff993d5ab8a6002363231958fabd0933b48811371b8c155eaa74592b66558

Download Submit
C:\Users\Admin\AppData\Roaming\-65A6372\-65logim.jpeg

Filesize
80KB

MD5
24b4c152674cd153493f0a79343f4110

SHA1
e67555908b10d911b12978e74ec0342d2207cb91

SHA256
2f091cf7ba5e26a22188ca1af1cf6d195f641e1927b0c8616613339307e14f58

SHA512
999cbe2e82be8ab1394d62d5c945be4233e5ff1312d2cfa51bd2818862eeb176e121e2fd9d834d37ba5edf006b4624811a1eff786465c0542533ae75cf931caa

Download Submit
C:\Users\Admin\AppData\Roaming\-65A6372\-65logrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\-65A6372\-65logrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\-65A6372\-65logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\-65A6372\-65logrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/2132-4-0x0000000001EC0000-0x0000000001EC3000-memory.dmp

Filesize
12KB

Download
memory/2132-3-0x00000000035E0000-0x000000000360D000-memory.dmp

Filesize
180KB

Download
memory/3056-6-0x0000000001B30000-0x0000000001E7A000-memory.dmp

Filesize
3.3MB

Download
memory/3056-12-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/3056-13-0x0000000003940000-0x0000000003954000-memory.dmp

Filesize
80KB

Download
memory/3056-8-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/3056-9-0x0000000001AF0000-0x0000000001B04000-memory.dmp

Filesize
80KB

Download
memory/3056-5-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/3416-24-0x00000000080A0000-0x00000000081D7000-memory.dmp

Filesize
1.2MB

Download
memory/3416-23-0x00000000080A0000-0x00000000081D7000-memory.dmp

Filesize
1.2MB

Download
memory/3416-21-0x00000000080A0000-0x00000000081D7000-memory.dmp

Filesize
1.2MB

Download
memory/3416-18-0x0000000008570000-0x0000000008710000-memory.dmp

Filesize
1.6MB

Download
memory/3416-14-0x0000000008570000-0x0000000008710000-memory.dmp

Filesize
1.6MB

Download
memory/3416-10-0x0000000007F50000-0x0000000008091000-memory.dmp

Filesize
1.3MB

Download
memory/4696-17-0x0000000000F70000-0x0000000000FCA000-memory.dmp

Filesize
360KB

Download
memory/4696-15-0x0000000000F70000-0x0000000000FCA000-memory.dmp

Filesize
360KB

Download