formbook | cbce721b186a5ebb1a2c51249571d8021cc67c019a0cfbc0cef73fd1de48708e

Analysis

max time kernel
157s
max time network
160s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
02/11/2022, 01:33

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General

Target

c352208b986b71d83fdc059413c236f0.exe
Size

215KB
MD5

c352208b986b71d83fdc059413c236f0
SHA1

24e6775ed6e4beb4235cc0604d6627a055aefbc1
SHA256

cbce721b186a5ebb1a2c51249571d8021cc67c019a0cfbc0cef73fd1de48708e
SHA512

0928857e3fcc4addb2787a9bc2ff99f1287e5e8d958d180adf6cb6c619571b54e551e51d1668aa68e3eda1beb3b887dd95b3a4dbad2d933d25d100db8370521a
SSDEEP

6144:qweEpws+7aOJr52ZvqBHtT69I83TEKX6eorwr:bwz71FIAB83TGeoMr

Score

10^/10

formbook b47h persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

b47h

Decoy

whistleblow-now.com

14live-msa.one

yenitedarikciniz.xyz

marmargoods.com

full-funs.com

saoraigne.com

noemiaguesthouse.space

datatobe.community

sollight.net

wavestudios.pro

freeorama.com

fasinixiaoribenguizi032.com

mariajaq.com

hyper.vote

aedin.dev

docind.com

zhulinx.com

estairon.best

mlnphotography.art

1948ardithdr.com

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/4072-140-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/2256-146-0x00000000004F0000-0x000000000051F000-memory.dmp	formbook
behavioral2/memory/2256-153-0x00000000004F0000-0x000000000051F000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
4356	slwigr.exe
4072	slwigr.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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\icifvg = "C:\\Users\\Admin\\AppData\\Roaming\\omta\\bdouwlcqivtf.exe \"C:\\Users\\Admin\\AppData\\Local\\Temp\\slwigr.exe\""	slwigr.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4356 set thread context of 4072	4356	slwigr.exe	80
PID 4072 set thread context of 2724	4072	slwigr.exe	24
PID 2256 set thread context of 2724	2256	colorcpl.exe	24

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	colorcpl.exe

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
4072	slwigr.exe
4072	slwigr.exe
4072	slwigr.exe
4072	slwigr.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2724	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
4356	slwigr.exe
4072	slwigr.exe
4072	slwigr.exe
4072	slwigr.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe
2256	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4072	slwigr.exe
Token: SeDebugPrivilege	2256	colorcpl.exe
Token: SeShutdownPrivilege	2724	Explorer.EXE
Token: SeCreatePagefilePrivilege	2724	Explorer.EXE
Token: SeShutdownPrivilege	2724	Explorer.EXE
Token: SeCreatePagefilePrivilege	2724	Explorer.EXE

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 5092 wrote to memory of 4356	5092	c352208b986b71d83fdc059413c236f0.exe	79
PID 5092 wrote to memory of 4356	5092	c352208b986b71d83fdc059413c236f0.exe	79
PID 5092 wrote to memory of 4356	5092	c352208b986b71d83fdc059413c236f0.exe	79
PID 4356 wrote to memory of 4072	4356	slwigr.exe	80
PID 4356 wrote to memory of 4072	4356	slwigr.exe	80
PID 4356 wrote to memory of 4072	4356	slwigr.exe	80
PID 4356 wrote to memory of 4072	4356	slwigr.exe	80
PID 2724 wrote to memory of 2256	2724	Explorer.EXE	81
PID 2724 wrote to memory of 2256	2724	Explorer.EXE	81
PID 2724 wrote to memory of 2256	2724	Explorer.EXE	81
PID 2256 wrote to memory of 4352	2256	colorcpl.exe	82
PID 2256 wrote to memory of 4352	2256	colorcpl.exe	82
PID 2256 wrote to memory of 4352	2256	colorcpl.exe	82
PID 2256 wrote to memory of 4900	2256	colorcpl.exe	84
PID 2256 wrote to memory of 4900	2256	colorcpl.exe	84
PID 2256 wrote to memory of 4900	2256	colorcpl.exe	84

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2724
- C:\Users\Admin\AppData\Local\Temp\c352208b986b71d83fdc059413c236f0.exe
  "C:\Users\Admin\AppData\Local\Temp\c352208b986b71d83fdc059413c236f0.exe"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:5092
- - C:\Users\Admin\AppData\Local\Temp\slwigr.exe
    "C:\Users\Admin\AppData\Local\Temp\slwigr.exe"
    3⤵
    - Executes dropped EXE
    - Adds Run key to start application
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:4356
  - - C:\Users\Admin\AppData\Local\Temp\slwigr.exe
      "C:\Users\Admin\AppData\Local\Temp\slwigr.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:4072
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2256
- - 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:4352
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4900

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

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Downloads

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\jyntwnnbg.tic

Filesize
185KB

MD5
392149410e737c3f0b1d7ec2cc250625

SHA1
5b739338c9ba1f019ba158cc144d614c71ff9251

SHA256
c9552ea638c91729b6ebfbd99ccf5d03acb048ebe9dc5c55cc957608905c8175

SHA512
0299af4a68f2eb88eab6c015c68f9a09ebfacb877307fea7be335265dc3297c0ddb3be38c4f45607cdf2098801f16481daabcb6aa2c08d7803e91fa6bea6ebf5

Download Submit
C:\Users\Admin\AppData\Local\Temp\rfzomyb.yyw

Filesize
7KB

MD5
f666a316b6dffb0d68449328d0018351

SHA1
e7853f1528eaa01501bfbfdfe75efa5a61a0f91f

SHA256
02ce30a2d8bd22d09630179405fe1fe0a26b7c3e50a788130c3e7b19c6d89962

SHA512
f022a2fda6718cdfb13afc0dc76fa622dfc757ebaf09bd3b6eeb97aaa748ebeb9074e7881c4e12991be48f4ceaf1329870acdb532a2fcf95dd126e0fecf5cbea

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

Filesize
6KB

MD5
a9d03f0a81f6308e5beba531e70c8e1c

SHA1
43ae43ab0d4feace10ae8947654db4197fd474b4

SHA256
f02d67020df9fa4312f397b3195ddeddf787d0143aef88f41d857513e54e4d7d

SHA512
906aa4697192c9cdee2d9051e85788968cb7338b6822a93fe250e063e85b49949201a862bc87129919b68f86228a066179e849119888f790c1bab032dd7390a5

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

Filesize
6KB

MD5
a9d03f0a81f6308e5beba531e70c8e1c

SHA1
43ae43ab0d4feace10ae8947654db4197fd474b4

SHA256
f02d67020df9fa4312f397b3195ddeddf787d0143aef88f41d857513e54e4d7d

SHA512
906aa4697192c9cdee2d9051e85788968cb7338b6822a93fe250e063e85b49949201a862bc87129919b68f86228a066179e849119888f790c1bab032dd7390a5

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

Filesize
6KB

MD5
a9d03f0a81f6308e5beba531e70c8e1c

SHA1
43ae43ab0d4feace10ae8947654db4197fd474b4

SHA256
f02d67020df9fa4312f397b3195ddeddf787d0143aef88f41d857513e54e4d7d

SHA512
906aa4697192c9cdee2d9051e85788968cb7338b6822a93fe250e063e85b49949201a862bc87129919b68f86228a066179e849119888f790c1bab032dd7390a5

Download Submit
C:\Users\Admin\AppData\Roaming\0K4M65UF\0K4logim.jpeg

Filesize
73KB

MD5
8c75a53d3e024daeb1ce2610b4addc4b

SHA1
38a0f4fd05a54e4cfc201498727b61311f9b2f54

SHA256
02e3c67d150cc69526c5922de52e59fe63bdb34bfb10fb16862b7474da2fc457

SHA512
16fff1d92a0cdb63d84b947d5370ae56bba9217f191e81908d414671ba43b82edd7be8caac7e22901ed820eb007b6550b7b07f7e64da41bebb14b6a7191d7362

Download Submit
C:\Users\Admin\AppData\Roaming\0K4M65UF\0K4logrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\0K4M65UF\0K4logrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\0K4M65UF\0K4logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\0K4M65UF\0K4logrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/2256-145-0x0000000000E90000-0x0000000000EA9000-memory.dmp

Filesize
100KB

Download
memory/2256-151-0x00000000023C0000-0x0000000002453000-memory.dmp

Filesize
588KB

Download
memory/2256-146-0x00000000004F0000-0x000000000051F000-memory.dmp

Filesize
188KB

Download
memory/2256-147-0x0000000002620000-0x000000000296A000-memory.dmp

Filesize
3.3MB

Download
memory/2256-153-0x00000000004F0000-0x000000000051F000-memory.dmp

Filesize
188KB

Download
memory/2724-154-0x0000000002BB0000-0x0000000002C91000-memory.dmp

Filesize
900KB

Download
memory/2724-152-0x0000000002BB0000-0x0000000002C91000-memory.dmp

Filesize
900KB

Download
memory/2724-150-0x0000000002840000-0x00000000029A2000-memory.dmp

Filesize
1.4MB

Download
memory/2724-143-0x0000000002840000-0x00000000029A2000-memory.dmp

Filesize
1.4MB

Download
memory/4072-142-0x0000000000C10000-0x0000000000C24000-memory.dmp

Filesize
80KB

Download
memory/4072-141-0x0000000001360000-0x00000000016AA000-memory.dmp

Filesize
3.3MB

Download
memory/4072-140-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download