formbook | 7c85f1aa39a1a12e2e1bf9d3b4b9f56e76304ce8efd332373f8404897b157a5a

General

Target

z1Xkptgkzbdmjptt.exe
Size

841KB
MD5

1ba791c7a5b6862922b4748e6193ecd9
SHA1

dbeab14ef5a7d6d869f1df053e1efb9244e2e9b1
SHA256

7c85f1aa39a1a12e2e1bf9d3b4b9f56e76304ce8efd332373f8404897b157a5a
SHA512

328491e87cb149feb1e4787e7db57534539f0ac304ae4fb8380823953a13cce1560991d4ec3c1032cdc55eb1e192b0acbf40b9828a150fc0632d430734463c56
SSDEEP

12288:IEaSIJxsS4ISFSs417nXbaGBazVb8N0K1WqN:/F0mcSFS77LaG6VIEg

Score

10^/10

formbook modiloader xloader uj3c loader persistence rat spyware stealer trojan

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

uj3c

Decoy

copimetro.com

choonchain.com

luxxwireless.com

fashionweekofcincinnati.com

campingshare.net

suncochina.com

kidsfundoor.com

testingnyc.co

lovesoe.com

vehiclesbeenrecord.com

socialpearmarketing.com

maxproductdji.com

getallarticle.online

forummind.com

arenamarenostrum.com

trisuaka.xyz

designgamagazine.com

chateaulehotel.com

huangse5.com

esginvestment.tech

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
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader

ModiLoader Second Stage 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/100-134-0x0000000002410000-0x0000000002442000-memory.dmp	modiloader_stage2

Xloader payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/100-141-0x0000000010410000-0x000000001043B000-memory.dmp	xloader
behavioral2/memory/2756-145-0x0000000010410000-0x000000001043B000-memory.dmp	xloader
behavioral2/memory/4204-152-0x0000000000D40000-0x0000000000D6B000-memory.dmp	xloader
behavioral2/memory/4204-154-0x0000000000D40000-0x0000000000D6B000-memory.dmp	xloader

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cscript.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	cscript.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ON6HZLAX8LN = "C:\\Program Files (x86)\\Z0jo4anz\\ctzpdyl80.exe"	cscript.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

Processes:

z1Xkptgkzbdmjptt.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Xkptgkzb = "C:\\Users\\Public\\Libraries\\bzkgtpkX.url"	z1Xkptgkzbdmjptt.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

colorcpl.execscript.exe

description	pid	process	target process
PID 2756 set thread context of 752	2756	colorcpl.exe	Explorer.EXE
PID 4204 set thread context of 752	4204	cscript.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cscript.exe

description ioc process

File opened for modification C:\Program Files (x86)\Z0jo4anz\ctzpdyl80.exe cscript.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Z0jo4anz\ctzpdyl80.exe	cscript.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cscript.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cscript.exe

Script User-Agent 3 IoCs

Uses user-agent string associated with script host/environment.

Processes:

description	flow	ioc
HTTP User-Agent header	23	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	24	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)
HTTP User-Agent header	28	Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5)

Suspicious behavior: EnumeratesProcesses 50 IoCs

Processes:

colorcpl.execscript.exe

pid	process
2756	colorcpl.exe
2756	colorcpl.exe
2756	colorcpl.exe
2756	colorcpl.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe
4204	cscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

752 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

colorcpl.execscript.exe

pid process

2756 colorcpl.exe
2756 colorcpl.exe
2756 colorcpl.exe
4204 cscript.exe
4204 cscript.exe
4204 cscript.exe
4204 cscript.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

colorcpl.execscript.exe

description pid process

Token: SeDebugPrivilege 2756 colorcpl.exe
Token: SeDebugPrivilege 4204 cscript.exe

pid	process
752	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2756	colorcpl.exe
Token: SeDebugPrivilege	4204	cscript.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

z1Xkptgkzbdmjptt.exeExplorer.EXEcscript.exe

description	pid	process	target process
PID 100 wrote to memory of 2756	100	z1Xkptgkzbdmjptt.exe	colorcpl.exe
PID 100 wrote to memory of 2756	100	z1Xkptgkzbdmjptt.exe	colorcpl.exe
PID 100 wrote to memory of 2756	100	z1Xkptgkzbdmjptt.exe	colorcpl.exe
PID 100 wrote to memory of 2756	100	z1Xkptgkzbdmjptt.exe	colorcpl.exe
PID 100 wrote to memory of 2756	100	z1Xkptgkzbdmjptt.exe	colorcpl.exe
PID 100 wrote to memory of 2756	100	z1Xkptgkzbdmjptt.exe	colorcpl.exe
PID 752 wrote to memory of 4204	752	Explorer.EXE	cscript.exe
PID 752 wrote to memory of 4204	752	Explorer.EXE	cscript.exe
PID 752 wrote to memory of 4204	752	Explorer.EXE	cscript.exe
PID 4204 wrote to memory of 2704	4204	cscript.exe	cmd.exe
PID 4204 wrote to memory of 2704	4204	cscript.exe	cmd.exe
PID 4204 wrote to memory of 2704	4204	cscript.exe	cmd.exe
PID 4204 wrote to memory of 4404	4204	cscript.exe	cmd.exe
PID 4204 wrote to memory of 4404	4204	cscript.exe	cmd.exe
PID 4204 wrote to memory of 4404	4204	cscript.exe	cmd.exe
PID 4204 wrote to memory of 4820	4204	cscript.exe	cmd.exe
PID 4204 wrote to memory of 4820	4204	cscript.exe	cmd.exe
PID 4204 wrote to memory of 4820	4204	cscript.exe	cmd.exe
PID 4204 wrote to memory of 2732	4204	cscript.exe	Firefox.exe
PID 4204 wrote to memory of 2732	4204	cscript.exe	Firefox.exe
PID 4204 wrote to memory of 2732	4204	cscript.exe	Firefox.exe

System policy modification 1 TTPs 1 IoCs
evasion

Modify Registry
T1112

Processes:

cscript.exe

description ioc process

Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer cscript.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer	cscript.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:752

C:\Users\Admin\AppData\Local\Temp\z1Xkptgkzbdmjptt.exe
"C:\Users\Admin\AppData\Local\Temp\z1Xkptgkzbdmjptt.exe"
2⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:100

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:2756

C:\Windows\SysWOW64\cscript.exe
"C:\Windows\SysWOW64\cscript.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
- System policy modification
PID:4204

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\colorcpl.exe"
3⤵
PID:2704

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:4404

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:4820

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:2732

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

2

T1060

Privilege Escalation

Defense Evasion

Modify Registry

4

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

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
46KB

MD5
02d2c46697e3714e49f46b680b9a6b83

SHA1
84f98b56d49f01e9b6b76a4e21accf64fd319140

SHA256
522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

SHA512
60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

Download Submit
memory/100-133-0x0000000002270000-0x0000000002271000-memory.dmp

Filesize
4KB

Download
memory/100-134-0x0000000002410000-0x0000000002442000-memory.dmp

Filesize
200KB

Download
memory/100-136-0x0000000000400000-0x00000000004D7000-memory.dmp

Filesize
860KB

Download
memory/100-140-0x0000000010410000-0x000000001043B000-memory.dmp

Filesize
172KB

Download
memory/100-141-0x0000000010410000-0x000000001043B000-memory.dmp

Filesize
172KB

Download
memory/752-148-0x0000000002EA0000-0x0000000002F60000-memory.dmp

Filesize
768KB

Download
memory/752-157-0x0000000008460000-0x000000000858C000-memory.dmp

Filesize
1.2MB

Download
memory/752-160-0x0000000008460000-0x000000000858C000-memory.dmp

Filesize
1.2MB

Download
memory/752-158-0x0000000008460000-0x000000000858C000-memory.dmp

Filesize
1.2MB

Download
memory/2756-147-0x0000000000980000-0x0000000000991000-memory.dmp

Filesize
68KB

Download
memory/2756-146-0x0000000002680000-0x00000000029CA000-memory.dmp

Filesize
3.3MB

Download
memory/2756-145-0x0000000010410000-0x000000001043B000-memory.dmp

Filesize
172KB

Download
memory/2756-142-0x0000000000390000-0x0000000000391000-memory.dmp

Filesize
4KB

Download
memory/4204-150-0x0000000000CF0000-0x0000000000D17000-memory.dmp

Filesize
156KB

Download
memory/4204-156-0x0000000002EC0000-0x0000000002F50000-memory.dmp

Filesize
576KB

Download
memory/4204-154-0x0000000000D40000-0x0000000000D6B000-memory.dmp

Filesize
172KB

Download
memory/4204-153-0x0000000003060000-0x00000000033AA000-memory.dmp

Filesize
3.3MB

Download
memory/4204-152-0x0000000000D40000-0x0000000000D6B000-memory.dmp

Filesize
172KB

Download
memory/4204-151-0x0000000000CF0000-0x0000000000D17000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads