formbook | e37b466a994825e7a44f625de253fc03dedd0d042127b035423f5dd2370d2f77

General

Target

Heineken_902738.exe
Size

753KB
MD5

7901c752f39af02c460c45bb8c056578
SHA1

c4afb3557c24fe5e8eb4f163ff3d2f8d08a76b24
SHA256

e37b466a994825e7a44f625de253fc03dedd0d042127b035423f5dd2370d2f77
SHA512

61b8f79757a7d6e61e21bc7773c9ae4f2db7fa24175cd5b7d91e3f277bb59d4cff69888ff3c23d801d19cef97b38e7a772c580d8eee832112b8849cfbbdfe85b

Score

10^/10

formbook xloader nekq loader persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

xloader

Version

2.8

Campaign

nekq

Decoy

/c9oNOPSc9aX85OuoqU=

OJ273U/T/c7no1jC

oPn68XFXJsCG6JOuoqU=

iAUbpb8k0vTRkUTK

pPasgiv9XQi4ESRJKCjRfGdj

J5jO/Yz6+M7no1jC

XdhiI9HBZsZlyKZ1jPx+JvxZEg==

uKpYHaMJ+OCnb0yGJ5d4Fg==

9/aD58LBdIIAdGJIaaiSTSuqn1/A

Q52txESw1ro3n3NlouzWgmgm06DFAvFR

nv0k5OdLOI8bBbwMrO7Lp059Fw==

NJ3N6nHo3qKAhDZJKCjRfGdj

z0FFAyMlzFonbTkMu79n

IxOiRvLolOiHw2lEcphyDfqqn1/A

Pi0Kkdu8Vr84Fg==

hGmJW4f0Eelq7fRazg3f1qZr

+O+SUb0HHflx55l0J5d4Fg==

raG3zxXI4rgz6Ipsia0=

OZuQHihvYzPayG4Ax70=

EYKIJDSGpYffFZOuoqU=

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
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata: ET MALWARE FormBook CnC Checkin (POST) M2
suricata

Xloader Payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/2604-136-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/2604-138-0x0000000000400000-0x000000000042C000-memory.dmp	xloader
behavioral2/memory/2576-145-0x00000000009D0000-0x00000000009FC000-memory.dmp	xloader
behavioral2/memory/2576-149-0x00000000009D0000-0x00000000009FC000-memory.dmp	xloader

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

Heineken_902738.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	Heineken_902738.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 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	cmd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\YLRT3HCH1 = "C:\\Program Files (x86)\\Xexmd\\k2ltzdjpjy.exe"	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Heineken_902738.exeHeineken_902738.execmd.exe

description	pid	process	target process
PID 1944 set thread context of 2604	1944	Heineken_902738.exe	Heineken_902738.exe
PID 2604 set thread context of 2040	2604	Heineken_902738.exe	Explorer.EXE
PID 2576 set thread context of 2040	2576	cmd.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

cmd.exe

description ioc process

File opened for modification C:\Program Files (x86)\Xexmd\k2ltzdjpjy.exe cmd.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Xexmd\k2ltzdjpjy.exe	cmd.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-2632097139-1792035885-811742494-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmd.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

Processes:

Heineken_902738.execmd.exe

pid	process
2604	Heineken_902738.exe
2604	Heineken_902738.exe
2604	Heineken_902738.exe
2604	Heineken_902738.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe
2576	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2040 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

Heineken_902738.execmd.exe

pid process

2604 Heineken_902738.exe
2604 Heineken_902738.exe
2604 Heineken_902738.exe
2576 cmd.exe
2576 cmd.exe
2576 cmd.exe
2576 cmd.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Heineken_902738.execmd.exe

description pid process

Token: SeDebugPrivilege 2604 Heineken_902738.exe
Token: SeDebugPrivilege 2576 cmd.exe

pid	process
2040	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2604	Heineken_902738.exe
Token: SeDebugPrivilege	2576	cmd.exe

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

Heineken_902738.exeExplorer.EXEcmd.exe

description	pid	process	target process
PID 1944 wrote to memory of 2604	1944	Heineken_902738.exe	Heineken_902738.exe
PID 1944 wrote to memory of 2604	1944	Heineken_902738.exe	Heineken_902738.exe
PID 1944 wrote to memory of 2604	1944	Heineken_902738.exe	Heineken_902738.exe
PID 1944 wrote to memory of 2604	1944	Heineken_902738.exe	Heineken_902738.exe
PID 1944 wrote to memory of 2604	1944	Heineken_902738.exe	Heineken_902738.exe
PID 1944 wrote to memory of 2604	1944	Heineken_902738.exe	Heineken_902738.exe
PID 2040 wrote to memory of 2576	2040	Explorer.EXE	cmd.exe
PID 2040 wrote to memory of 2576	2040	Explorer.EXE	cmd.exe
PID 2040 wrote to memory of 2576	2040	Explorer.EXE	cmd.exe
PID 2576 wrote to memory of 2156	2576	cmd.exe	cmd.exe
PID 2576 wrote to memory of 2156	2576	cmd.exe	cmd.exe
PID 2576 wrote to memory of 2156	2576	cmd.exe	cmd.exe
PID 2576 wrote to memory of 3604	2576	cmd.exe	cmd.exe
PID 2576 wrote to memory of 3604	2576	cmd.exe	cmd.exe
PID 2576 wrote to memory of 3604	2576	cmd.exe	cmd.exe
PID 2576 wrote to memory of 4652	2576	cmd.exe	cmd.exe
PID 2576 wrote to memory of 4652	2576	cmd.exe	cmd.exe
PID 2576 wrote to memory of 4652	2576	cmd.exe	cmd.exe
PID 2576 wrote to memory of 5088	2576	cmd.exe	Firefox.exe
PID 2576 wrote to memory of 5088	2576	cmd.exe	Firefox.exe
PID 2576 wrote to memory of 5088	2576	cmd.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2040

C:\Users\Admin\AppData\Local\Temp\Heineken_902738.exe
"C:\Users\Admin\AppData\Local\Temp\Heineken_902738.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1944

C:\Users\Admin\AppData\Local\Temp\Heineken_902738.exe
"C:\Users\Admin\AppData\Local\Temp\Heineken_902738.exe"
3⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2604

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\SysWOW64\cmd.exe"
2⤵
- Adds 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:2576

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Heineken_902738.exe"
3⤵
PID:2156

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:3604

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:4652

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:5088

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\Local\Temp\DB1
Filesize
48KB

MD5
349e6eb110e34a08924d92f6b334801d

SHA1
bdfb289daff51890cc71697b6322aa4b35ec9169

SHA256
c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

SHA512
2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

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memory/1944-131-0x0000000005BF0000-0x0000000006194000-memory.dmp

Filesize
5.6MB

Download
memory/1944-132-0x0000000005470000-0x0000000005502000-memory.dmp

Filesize
584KB

Download
memory/1944-133-0x0000000005440000-0x000000000544A000-memory.dmp

Filesize
40KB

Download
memory/1944-134-0x00000000091F0000-0x000000000928C000-memory.dmp

Filesize
624KB

Download
memory/1944-130-0x00000000009D0000-0x0000000000A92000-memory.dmp

Filesize
776KB

Download
memory/2040-150-0x00000000083B0000-0x00000000084E7000-memory.dmp

Filesize
1.2MB

Download
memory/2040-148-0x00000000083B0000-0x00000000084E7000-memory.dmp

Filesize
1.2MB

Download
memory/2040-141-0x00000000080B0000-0x00000000081F0000-memory.dmp

Filesize
1.2MB

Download
memory/2156-144-0x0000000000000000-mapping.dmp

Download
memory/2576-149-0x00000000009D0000-0x00000000009FC000-memory.dmp

Filesize
176KB

Download
memory/2576-143-0x0000000000FB0000-0x000000000100A000-memory.dmp

Filesize
360KB

Download
memory/2576-142-0x0000000000000000-mapping.dmp

Download
memory/2576-145-0x00000000009D0000-0x00000000009FC000-memory.dmp

Filesize
176KB

Download
memory/2576-146-0x0000000001640000-0x000000000198A000-memory.dmp

Filesize
3.3MB

Download
memory/2576-147-0x0000000001540000-0x00000000015D0000-memory.dmp

Filesize
576KB

Download
memory/2604-140-0x00000000017E0000-0x00000000017F1000-memory.dmp

Filesize
68KB

Download
memory/2604-139-0x0000000001880000-0x0000000001BCA000-memory.dmp

Filesize
3.3MB

Download
memory/2604-138-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2604-136-0x0000000000400000-0x000000000042C000-memory.dmp

Filesize
176KB

Download
memory/2604-135-0x0000000000000000-mapping.dmp

Download
memory/3604-151-0x0000000000000000-mapping.dmp

Download
memory/4652-153-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads