formbook | 2d150c3fca009a40d7c8e0641454412427d99664b985ba8c30614b9227a3c34f

Analysis

max time kernel
166s
max time network
170s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
18-04-2022 14:32

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General

Target

aa9db27b2063f5aee9f97d7d86b883686f51bd030d0b38d6daaed3629a230a7d.exe
Size

271KB
MD5

f9a20cce97d6efd9e8d071420a8858b7
SHA1

17680094e9bdefe2f5205729f2b55be2ffca81fa
SHA256

aa9db27b2063f5aee9f97d7d86b883686f51bd030d0b38d6daaed3629a230a7d
SHA512

fb9055d9f19788e0c2d25f3f400165b630ef6f62604d6ee6a764c7a57f5f115737db4187be30641bca16af11d84d3afdde73b0790f5d43f682e10439ed7a1026

Score

10^/10

formbook xloader p00n loader persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xloader

Version

2.5

Campaign

p00n

Decoy

beaniemart.com

sugarlaces.online

kinesio-leman.com

gasfreenft.com

ateneaespai.com

askyourhr.com

recruitloft.com

carolinasbestroofingcompany.com

coacher.online

freshmind.today

help-it.online

nicelink17.com

islandtimeoperations.com

agricurve.net

rizkhr.com

innovatorsincommerce.com

grownwings.com

learningout.store

miaglam.com

tengfeijd8.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

Xloader Payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/4888-136-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4888-142-0x0000000000400000-0x0000000000429000-memory.dmp	xloader
behavioral2/memory/4192-147-0x0000000000970000-0x0000000000999000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	netsh.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\YV18AN48N = "C:\\Program Files (x86)\\J9r-lc\\yp_wv1.exe"	netsh.exe

Executes dropped EXE 3 IoCs

pid	Process
5020	vvywdeos.exe
4888	vvywdeos.exe
2396	yp_wv1.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 5020 set thread context of 4888	5020	vvywdeos.exe	81
PID 4888 set thread context of 3252	4888	vvywdeos.exe	41
PID 4888 set thread context of 3252	4888	vvywdeos.exe	41
PID 4192 set thread context of 3252	4192	netsh.exe	41

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\J9r-lc	Explorer.EXE
File created	C:\Program Files (x86)\J9r-lc\yp_wv1.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\J9r-lc\yp_wv1.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\J9r-lc\yp_wv1.exe	netsh.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
772	2396	WerFault.exe	89

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	netsh.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
4888	vvywdeos.exe
4888	vvywdeos.exe
4888	vvywdeos.exe
4888	vvywdeos.exe
4888	vvywdeos.exe
4888	vvywdeos.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3252	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
4888	vvywdeos.exe
4888	vvywdeos.exe
4888	vvywdeos.exe
4888	vvywdeos.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe
4192	netsh.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeDebugPrivilege	4888	vvywdeos.exe
Token: SeDebugPrivilege	4192	netsh.exe
Token: SeShutdownPrivilege	3252	Explorer.EXE
Token: SeCreatePagefilePrivilege	3252	Explorer.EXE
Token: SeShutdownPrivilege	3252	Explorer.EXE
Token: SeCreatePagefilePrivilege	3252	Explorer.EXE
Token: SeShutdownPrivilege	3252	Explorer.EXE
Token: SeCreatePagefilePrivilege	3252	Explorer.EXE
Token: SeShutdownPrivilege	3252	Explorer.EXE
Token: SeCreatePagefilePrivilege	3252	Explorer.EXE
Token: SeShutdownPrivilege	3252	Explorer.EXE
Token: SeCreatePagefilePrivilege	3252	Explorer.EXE
Token: SeShutdownPrivilege	3252	Explorer.EXE
Token: SeCreatePagefilePrivilege	3252	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 3512 wrote to memory of 5020	3512	aa9db27b2063f5aee9f97d7d86b883686f51bd030d0b38d6daaed3629a230a7d.exe	79
PID 3512 wrote to memory of 5020	3512	aa9db27b2063f5aee9f97d7d86b883686f51bd030d0b38d6daaed3629a230a7d.exe	79
PID 3512 wrote to memory of 5020	3512	aa9db27b2063f5aee9f97d7d86b883686f51bd030d0b38d6daaed3629a230a7d.exe	79
PID 5020 wrote to memory of 4888	5020	vvywdeos.exe	81
PID 5020 wrote to memory of 4888	5020	vvywdeos.exe	81
PID 5020 wrote to memory of 4888	5020	vvywdeos.exe	81
PID 5020 wrote to memory of 4888	5020	vvywdeos.exe	81
PID 5020 wrote to memory of 4888	5020	vvywdeos.exe	81
PID 5020 wrote to memory of 4888	5020	vvywdeos.exe	81
PID 3252 wrote to memory of 4192	3252	Explorer.EXE	82
PID 3252 wrote to memory of 4192	3252	Explorer.EXE	82
PID 3252 wrote to memory of 4192	3252	Explorer.EXE	82
PID 4192 wrote to memory of 4048	4192	netsh.exe	84
PID 4192 wrote to memory of 4048	4192	netsh.exe	84
PID 4192 wrote to memory of 4048	4192	netsh.exe	84
PID 4192 wrote to memory of 4540	4192	netsh.exe	86
PID 4192 wrote to memory of 4540	4192	netsh.exe	86
PID 4192 wrote to memory of 4540	4192	netsh.exe	86
PID 4192 wrote to memory of 4556	4192	netsh.exe	88
PID 4192 wrote to memory of 4556	4192	netsh.exe	88
PID 3252 wrote to memory of 2396	3252	Explorer.EXE	89
PID 3252 wrote to memory of 2396	3252	Explorer.EXE	89
PID 3252 wrote to memory of 2396	3252	Explorer.EXE	89
PID 4192 wrote to memory of 4556	4192	netsh.exe	88

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3252
- C:\Users\Admin\AppData\Local\Temp\aa9db27b2063f5aee9f97d7d86b883686f51bd030d0b38d6daaed3629a230a7d.exe
  "C:\Users\Admin\AppData\Local\Temp\aa9db27b2063f5aee9f97d7d86b883686f51bd030d0b38d6daaed3629a230a7d.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3512
- - C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe
    C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe C:\Users\Admin\AppData\Local\Temp\pkjant
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious use of WriteProcessMemory
    PID:5020
  - - C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe
      C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe C:\Users\Admin\AppData\Local\Temp\pkjant
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4888
- C:\Windows\SysWOW64\netsh.exe
  "C:\Windows\SysWOW64\netsh.exe"
  2⤵
  - Adds policy Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4192
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe"
    3⤵
    PID:4048
- - 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⤵
    PID:4540
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4556
- C:\Program Files (x86)\J9r-lc\yp_wv1.exe
  "C:\Program Files (x86)\J9r-lc\yp_wv1.exe"
  2⤵
  - Executes dropped EXE
  PID:2396
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2396 -s 668
    3⤵
    - Program crash
    PID:772

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2396 -ip 2396
1⤵
PID:4972

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\J9r-lc\yp_wv1.exe

Filesize
70KB

MD5
f357de702f7b08ff1b60c2ca5bbdafa2

SHA1
bc9e18bfbb4a9ce14351dfdffc3f57d22b40831a

SHA256
9b4b5b5048151f723ca57f67e9107e24c844f1be62b977efaeabedb5d620eaf5

SHA512
9b096e239c01f7bf7c946719deb3cadaf206ebd29530cf425a885e7351286b5f010b3fb66a3d55cef5200f2504ef76648789ec95a4935a6ea59a8f51280484d8

Download Submit
C:\Program Files (x86)\J9r-lc\yp_wv1.exe

Filesize
70KB

MD5
f357de702f7b08ff1b60c2ca5bbdafa2

SHA1
bc9e18bfbb4a9ce14351dfdffc3f57d22b40831a

SHA256
9b4b5b5048151f723ca57f67e9107e24c844f1be62b977efaeabedb5d620eaf5

SHA512
9b096e239c01f7bf7c946719deb3cadaf206ebd29530cf425a885e7351286b5f010b3fb66a3d55cef5200f2504ef76648789ec95a4935a6ea59a8f51280484d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\45s2zanww2v1sy0

Filesize
213KB

MD5
024f5eb96b56308cfb64fe436e8de447

SHA1
307585696be6985d5b7a3289dd4845f534868483

SHA256
926d2ab16139435d5fda9b2badafb9d5eefb606faf59cd1c7b44a282a22feefb

SHA512
e9754c234a15449ccc1e0d2f72c6a7cc63ef4887c2a5c8a93ab83905e42f3d85e77a1efe6b3e032e8b7d531a722c3b7da62349faf7921539947dd8e117bc650d

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

Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\pkjant

Filesize
4KB

MD5
35ba5cfdc4921d469e0f0959c2827785

SHA1
7295bd83ae1c581099495ec9d8fd9f9b62a97657

SHA256
c3a8511a37564f699ee8c9ec8340f73790bf81e55f3327f4d787b13dc333e013

SHA512
28be15b241179899df176541c469d49cd555e73871ee515bd2d931370fe416b8ad9b3464cfcb741156af126bcc1cdb9f5b5320671c16ffb1a25876d14952d4dd

Download Submit
C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe

Filesize
70KB

MD5
f357de702f7b08ff1b60c2ca5bbdafa2

SHA1
bc9e18bfbb4a9ce14351dfdffc3f57d22b40831a

SHA256
9b4b5b5048151f723ca57f67e9107e24c844f1be62b977efaeabedb5d620eaf5

SHA512
9b096e239c01f7bf7c946719deb3cadaf206ebd29530cf425a885e7351286b5f010b3fb66a3d55cef5200f2504ef76648789ec95a4935a6ea59a8f51280484d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe

Filesize
70KB

MD5
f357de702f7b08ff1b60c2ca5bbdafa2

SHA1
bc9e18bfbb4a9ce14351dfdffc3f57d22b40831a

SHA256
9b4b5b5048151f723ca57f67e9107e24c844f1be62b977efaeabedb5d620eaf5

SHA512
9b096e239c01f7bf7c946719deb3cadaf206ebd29530cf425a885e7351286b5f010b3fb66a3d55cef5200f2504ef76648789ec95a4935a6ea59a8f51280484d8

Download Submit
C:\Users\Admin\AppData\Local\Temp\vvywdeos.exe

Filesize
70KB

MD5
f357de702f7b08ff1b60c2ca5bbdafa2

SHA1
bc9e18bfbb4a9ce14351dfdffc3f57d22b40831a

SHA256
9b4b5b5048151f723ca57f67e9107e24c844f1be62b977efaeabedb5d620eaf5

SHA512
9b096e239c01f7bf7c946719deb3cadaf206ebd29530cf425a885e7351286b5f010b3fb66a3d55cef5200f2504ef76648789ec95a4935a6ea59a8f51280484d8

Download Submit
memory/3252-141-0x0000000008800000-0x0000000008951000-memory.dmp

Filesize
1.3MB

Download
memory/3252-151-0x0000000007690000-0x0000000007746000-memory.dmp

Filesize
728KB

Download
memory/3252-144-0x0000000002F70000-0x0000000003027000-memory.dmp

Filesize
732KB

Download
memory/4192-150-0x0000000001410000-0x00000000014A0000-memory.dmp

Filesize
576KB

Download
memory/4192-147-0x0000000000970000-0x0000000000999000-memory.dmp

Filesize
164KB

Download
memory/4192-146-0x0000000000ED0000-0x0000000000EEE000-memory.dmp

Filesize
120KB

Download
memory/4192-149-0x00000000016F0000-0x0000000001A3A000-memory.dmp

Filesize
3.3MB

Download
memory/4888-136-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4888-143-0x00000000016C0000-0x00000000016D1000-memory.dmp

Filesize
68KB

Download
memory/4888-142-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4888-140-0x00000000011A0000-0x00000000011B1000-memory.dmp

Filesize
68KB

Download
memory/4888-138-0x00000000011F0000-0x000000000153A000-memory.dmp

Filesize
3.3MB

Download