formbook | a96c7253cab161d289efdea709091608649deeb1423a4df65d1cd13ad28642ae

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20240730-en
resource tags

arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
submitted
01-08-2024 06:43

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General

Target

MCS61094Y5OI8.exe
Size

651KB
MD5

622fec48546a83b6c146074a7c6de40d
SHA1

3cc90d360795455fa69b6bf12ccf36ae0e09106e
SHA256

a96c7253cab161d289efdea709091608649deeb1423a4df65d1cd13ad28642ae
SHA512

fe3048d55396bfea180146a37225cd42f8bcc21cf56cec063f02fb5a48b52bf9f316a072adb6733fc52488b21987d4f19b0262010cc1caa803343785892bed04
SSDEEP

12288:3tJ6BgKTNRh02gF64s3leiYpIRsLI4L0i/xgQnrQstn8CMEaSLIMz+t:3tJofHgF83siW04L0i/xgKftn8CMEpLy

Score

10^/10

formbook de94 credential_access discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

de94

Decoy

gx899.top

whoistommy.info

vabex.shop

vduwum.rest

betbox2351.com

ch3kat0.online

kaduexpress.com

sibonline.shop

bt365918.com

betterlabs.app

denversandandgravel.net

webzlp.xyz

tdodtn263q.xyz

zamaninvest.com

vcxwpo.xyz

myastrolyfe.com

lsm8v87jnkrqcnr.buzz

ilregnodellecozze.com

auroraskynholistics.com

sewassist.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1868-10-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1868-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/4644-21-0x0000000000360000-0x000000000038F000-memory.dmp	formbook

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
T1552.001

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3404 set thread context of 1868	3404	MCS61094Y5OI8.exe	87
PID 1868 set thread context of 3436	1868	MCS61094Y5OI8.exe	56
PID 4644 set thread context of 3436	4644	svchost.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	MCS61094Y5OI8.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.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-1-5-21-113082768-653872390-2867000172-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	svchost.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 58 IoCs

pid	Process
3404	MCS61094Y5OI8.exe
3404	MCS61094Y5OI8.exe
1868	MCS61094Y5OI8.exe
1868	MCS61094Y5OI8.exe
1868	MCS61094Y5OI8.exe
1868	MCS61094Y5OI8.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
1868	MCS61094Y5OI8.exe
1868	MCS61094Y5OI8.exe
1868	MCS61094Y5OI8.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe
4644	svchost.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	3404	MCS61094Y5OI8.exe
Token: SeDebugPrivilege	1868	MCS61094Y5OI8.exe
Token: SeDebugPrivilege	4644	svchost.exe
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE
Token: SeShutdownPrivilege	3436	Explorer.EXE
Token: SeCreatePagefilePrivilege	3436	Explorer.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
3436	Explorer.EXE
3436	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3436	Explorer.EXE

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3404 wrote to memory of 5112	3404	MCS61094Y5OI8.exe	86
PID 3404 wrote to memory of 5112	3404	MCS61094Y5OI8.exe	86
PID 3404 wrote to memory of 5112	3404	MCS61094Y5OI8.exe	86
PID 3404 wrote to memory of 1868	3404	MCS61094Y5OI8.exe	87
PID 3404 wrote to memory of 1868	3404	MCS61094Y5OI8.exe	87
PID 3404 wrote to memory of 1868	3404	MCS61094Y5OI8.exe	87
PID 3404 wrote to memory of 1868	3404	MCS61094Y5OI8.exe	87
PID 3404 wrote to memory of 1868	3404	MCS61094Y5OI8.exe	87
PID 3404 wrote to memory of 1868	3404	MCS61094Y5OI8.exe	87
PID 3436 wrote to memory of 4644	3436	Explorer.EXE	88
PID 3436 wrote to memory of 4644	3436	Explorer.EXE	88
PID 3436 wrote to memory of 4644	3436	Explorer.EXE	88
PID 4644 wrote to memory of 1116	4644	svchost.exe	89
PID 4644 wrote to memory of 1116	4644	svchost.exe	89
PID 4644 wrote to memory of 1116	4644	svchost.exe	89
PID 4644 wrote to memory of 4512	4644	svchost.exe	91
PID 4644 wrote to memory of 4512	4644	svchost.exe	91
PID 4644 wrote to memory of 4512	4644	svchost.exe	91

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3436
- C:\Users\Admin\AppData\Local\Temp\MCS61094Y5OI8.exe
  "C:\Users\Admin\AppData\Local\Temp\MCS61094Y5OI8.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3404
- - C:\Users\Admin\AppData\Local\Temp\MCS61094Y5OI8.exe
    "C:\Users\Admin\AppData\Local\Temp\MCS61094Y5OI8.exe"
    3⤵
    PID:5112
- - C:\Users\Admin\AppData\Local\Temp\MCS61094Y5OI8.exe
    "C:\Users\Admin\AppData\Local\Temp\MCS61094Y5OI8.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1868
- C:\Windows\SysWOW64\svchost.exe
  "C:\Windows\SysWOW64\svchost.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4644
- - 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:1116
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4512

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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\KNPQ4AV3\KNPlogim.jpeg

Filesize
83KB

MD5
a271824702eabdb57812774ff265d55b

SHA1
3be58e3f9ebde01fe51baa209c02cb36d5023c7c

SHA256
3f675450d244229fac5bd4042aa85ef14a9a5065ab50a7efaee1ffc0cb2f6cf5

SHA512
a2890b9b84bf5f9c51f78bc644960f0be88dd9bf0576ca6333e42690882651660ebb8ff1649fa446389805956774d83cdf04646fada2398d48fe7471a39bbf57

Download Submit
C:\Users\Admin\AppData\Roaming\KNPQ4AV3\KNPlogrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\KNPQ4AV3\KNPlogrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\KNPQ4AV3\KNPlogri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\KNPQ4AV3\KNPlogrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/1868-10-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1868-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1868-16-0x0000000001460000-0x0000000001475000-memory.dmp

Filesize
84KB

Download
memory/1868-13-0x00000000019C0000-0x0000000001D0A000-memory.dmp

Filesize
3.3MB

Download
memory/3404-7-0x0000000005C80000-0x0000000005C8E000-memory.dmp

Filesize
56KB

Download
memory/3404-5-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/3404-9-0x0000000006B40000-0x0000000006BDC000-memory.dmp

Filesize
624KB

Download
memory/3404-8-0x0000000006870000-0x00000000068E6000-memory.dmp

Filesize
472KB

Download
memory/3404-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/3404-1-0x0000000000BA0000-0x0000000000C48000-memory.dmp

Filesize
672KB

Download
memory/3404-2-0x0000000005CC0000-0x0000000006264000-memory.dmp

Filesize
5.6MB

Download
memory/3404-3-0x0000000005620000-0x00000000056B2000-memory.dmp

Filesize
584KB

Download
memory/3404-4-0x00000000056E0000-0x00000000056EA000-memory.dmp

Filesize
40KB

Download
memory/3404-6-0x0000000005C60000-0x0000000005C72000-memory.dmp

Filesize
72KB

Download
memory/3404-12-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/3436-40-0x00000000028E0000-0x00000000029D4000-memory.dmp

Filesize
976KB

Download
memory/3436-41-0x00000000028E0000-0x00000000029D4000-memory.dmp

Filesize
976KB

Download
memory/3436-37-0x00000000025C0000-0x0000000002692000-memory.dmp

Filesize
840KB

Download
memory/3436-17-0x00000000025C0000-0x0000000002692000-memory.dmp

Filesize
840KB

Download
memory/3436-49-0x00000000028E0000-0x00000000029D4000-memory.dmp

Filesize
976KB

Download
memory/4644-21-0x0000000000360000-0x000000000038F000-memory.dmp

Filesize
188KB

Download
memory/4644-20-0x0000000000330000-0x000000000033E000-memory.dmp

Filesize
56KB

Download
memory/4644-18-0x0000000000330000-0x000000000033E000-memory.dmp

Filesize
56KB

Download