formbook | bf819f349b1a9b6deeea98d39f8cca6fd42e3961e2e2e5311330fc1e3dd6ab85

General

Target

SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe
Size

700KB
MD5

138fce425be542aeca70c0ddbb510f90
SHA1

c24709d4786b723be7ad81edc61fb2affd157e86
SHA256

bf819f349b1a9b6deeea98d39f8cca6fd42e3961e2e2e5311330fc1e3dd6ab85
SHA512

982f48fb34f641d948446659a82daca9e5a4eb8ead0bfdd39ee2a4f5abfcc0d110c45952a2ad7970b63570e9e984268001a04f8c58402c2247822907e1d68254
SSDEEP

12288:bgBB6jXPwPtg1b0RYoaN8ntpKzHVKn4AFchi8oyn7nBad:byESSV4YCQzHM4SATB

Score

10^/10

formbook modiloader n7ak persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

n7ak

Decoy

wise-transfer.info

jam-nins.com

thebestsocialcrm.com

majomeow222.com

ancientshadowguilt.space

gentleman-china.com

parquemermoz.store

taxuw.com

sharqiyapaints.com

libraryofkath.com

1949wan.com

synqr.net

bitchessgirls.com

btonu.cfd

coding-bootcamps-16314.com

leadership22-tdh.site

maximsboutique.com

irishsummertruffles.com

sdnaqianchuan.com

uyews.xyz

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
ModiLoader, DBatLoader
ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.
trojan modiloader

Formbook payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4808-136-0x0000000010410000-0x000000001043F000-memory.dmp	formbook
behavioral2/memory/4008-142-0x0000000010410000-0x000000001043F000-memory.dmp	formbook
behavioral2/memory/396-144-0x0000000000470000-0x000000000049F000-memory.dmp	formbook

ModiLoader Second Stage 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4808-132-0x0000000003F50000-0x0000000003F7D000-memory.dmp	modiloader_stage2

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

Processes:

SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Izgtbrid = "C:\\Users\\Public\\Libraries\\dirbtgzI.url"	SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

colorcpl.exechkdsk.exe

description	pid	process	target process
PID 4008 set thread context of 2640	4008	colorcpl.exe	Explorer.EXE
PID 396 set thread context of 2640	396	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2295526160-1155304984-640977766-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 56 IoCs

Processes:

SecuriteInfo.com.Variant.Zusy.446558.10176.2184.execolorcpl.exechkdsk.exe

pid	process
4808	SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe
4808	SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe
4808	SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe
4808	SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe
4008	colorcpl.exe
4008	colorcpl.exe
4008	colorcpl.exe
4008	colorcpl.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2640 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

colorcpl.exechkdsk.exe

pid process

4008 colorcpl.exe
4008 colorcpl.exe
4008 colorcpl.exe
396 chkdsk.exe
396 chkdsk.exe
396 chkdsk.exe
396 chkdsk.exe

pid	process
2640	Explorer.EXE

pid	process
4008	colorcpl.exe
4008	colorcpl.exe
4008	colorcpl.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe
396	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

colorcpl.exeExplorer.EXEchkdsk.exe

description	pid	process
Token: SeDebugPrivilege	4008	colorcpl.exe
Token: SeShutdownPrivilege	2640	Explorer.EXE
Token: SeCreatePagefilePrivilege	2640	Explorer.EXE
Token: SeShutdownPrivilege	2640	Explorer.EXE
Token: SeCreatePagefilePrivilege	2640	Explorer.EXE
Token: SeDebugPrivilege	396	chkdsk.exe
Token: SeShutdownPrivilege	2640	Explorer.EXE
Token: SeCreatePagefilePrivilege	2640	Explorer.EXE
Token: SeShutdownPrivilege	2640	Explorer.EXE
Token: SeCreatePagefilePrivilege	2640	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 4808 wrote to memory of 4008	4808	SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe	colorcpl.exe
PID 4808 wrote to memory of 4008	4808	SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe	colorcpl.exe
PID 4808 wrote to memory of 4008	4808	SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe	colorcpl.exe
PID 4808 wrote to memory of 4008	4808	SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe	colorcpl.exe
PID 4808 wrote to memory of 4008	4808	SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe	colorcpl.exe
PID 4808 wrote to memory of 4008	4808	SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe	colorcpl.exe
PID 2640 wrote to memory of 396	2640	Explorer.EXE	chkdsk.exe
PID 2640 wrote to memory of 396	2640	Explorer.EXE	chkdsk.exe
PID 2640 wrote to memory of 396	2640	Explorer.EXE	chkdsk.exe
PID 396 wrote to memory of 3460	396	chkdsk.exe	cmd.exe
PID 396 wrote to memory of 3460	396	chkdsk.exe	cmd.exe
PID 396 wrote to memory of 3460	396	chkdsk.exe	cmd.exe
PID 396 wrote to memory of 3500	396	chkdsk.exe	Firefox.exe
PID 396 wrote to memory of 3500	396	chkdsk.exe	Firefox.exe
PID 396 wrote to memory of 3500	396	chkdsk.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2640

C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe
"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.Variant.Zusy.446558.10176.2184.exe"
2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4808

C:\Windows\SysWOW64\colorcpl.exe
C:\Windows\System32\colorcpl.exe
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4008

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:396

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:3460

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3500

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

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\Roaming\94O2R65S\94Ologim.jpeg
Filesize
77KB

MD5
0c84f3fadd923bf3f1d135d316e3a680

SHA1
f861fe06efe2d5b63b9b330263e8ecbf2ca8f98c

SHA256
2cd1235a5cf59c0f5c46066f34a91c29427b0e20423af98e7d1899597a96ceed

SHA512
1441a1a2b00cc769edbdcbd235e7feac22829611057a212ac726f3fe6c84654460dc220840d2f29d035916f8f444f0c53f05bee3e68efd3a16911c5247aa0794

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologrf.ini
Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologrg.ini
Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\94O2R65S\94Ologrv.ini
Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/396-144-0x0000000000470000-0x000000000049F000-memory.dmp

Filesize
188KB

Download
memory/396-148-0x00000000009D0000-0x0000000000A63000-memory.dmp

Filesize
588KB

Download
memory/396-141-0x0000000000000000-mapping.dmp

Download
memory/396-143-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/396-145-0x0000000000B30000-0x0000000000E7A000-memory.dmp

Filesize
3.3MB

Download
memory/2640-149-0x0000000008C20000-0x0000000008DB0000-memory.dmp

Filesize
1.6MB

Download
memory/2640-140-0x0000000002BF0000-0x0000000002D2F000-memory.dmp

Filesize
1.2MB

Download
memory/2640-150-0x0000000008C20000-0x0000000008DB0000-memory.dmp

Filesize
1.6MB

Download
memory/3460-146-0x0000000000000000-mapping.dmp

Download
memory/4008-142-0x0000000010410000-0x000000001043F000-memory.dmp

Filesize
188KB

Download
memory/4008-139-0x0000000004BF0000-0x0000000004C04000-memory.dmp

Filesize
80KB

Download
memory/4008-138-0x0000000004CC0000-0x000000000500A000-memory.dmp

Filesize
3.3MB

Download
memory/4008-134-0x0000000000000000-mapping.dmp

Download
memory/4808-132-0x0000000003F50000-0x0000000003F7D000-memory.dmp

Filesize
180KB

Download
memory/4808-136-0x0000000010410000-0x000000001043F000-memory.dmp

Filesize
188KB

Download
memory/4808-135-0x0000000010410000-0x000000001043F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads