formbook | 1746f63fe3b4b47c452d7321cec1abc493000042daf190fc09059451e9290dbb

General

Target

RFQ and Purchase Order 060920A..exe
Size

378KB
MD5

7f97fe13229e97475a0454942646a562
SHA1

d0c150fc54a75e97a1bd54833a826b6bc294c177
SHA256

b84f164b86250eaee07153f4665af8826f0e934ba80e505ae37ead324f53b971
SHA512

870912c5988a4547720393518b3721386bc60724d70bbfc2445ca098475171f332c4b092993d6bea980bd76c2d22bae6b5501555736278469b0936e94ed442b3

Score

10^/10

formbook wrez persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

wrez

Decoy

living-teu.com

buyemerilairfryer360.com

locagames.com

seaworldeg.com

dokushostation.com

nethange.com

lendreview.com

officerdownapparel.info

pandora.store

yuanchuang.kim

kevinimage.win

littleinkings.com

ggluav61.com

fsylkzfkm.download

skansch.reisen

yahunjuij.com

enming.top

wwwha55188.com

russischesvisazentrum.info

document7.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Formbook Payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4156-134-0x0000000000400000-0x000000000042D000-memory.dmp	formbook
behavioral2/memory/3408-141-0x0000000000970000-0x000000000099D000-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
T1081

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\Registry\Machine\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\-ZG4KBMX = "C:\\Program Files (x86)\\Ydbchi\\7nzxedvpdbt834.exe"	msiexec.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

RFQ and Purchase Order 060920A..exeRFQ and Purchase Order 060920A..exemsiexec.exe

description	pid	process	target process
PID 3908 set thread context of 4156	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 4156 set thread context of 2668	4156	RFQ and Purchase Order 060920A..exe	Explorer.EXE
PID 3408 set thread context of 2668	3408	msiexec.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

msiexec.exe

description ioc process

File opened for modification C:\Program Files (x86)\Ydbchi\7nzxedvpdbt834.exe msiexec.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Ydbchi\7nzxedvpdbt834.exe	msiexec.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

msiexec.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1081944012-3634099177-1681222835-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

Processes:

RFQ and Purchase Order 060920A..exeRFQ and Purchase Order 060920A..exemsiexec.exe

pid	process
3908	RFQ and Purchase Order 060920A..exe
3908	RFQ and Purchase Order 060920A..exe
3908	RFQ and Purchase Order 060920A..exe
3908	RFQ and Purchase Order 060920A..exe
4156	RFQ and Purchase Order 060920A..exe
4156	RFQ and Purchase Order 060920A..exe
4156	RFQ and Purchase Order 060920A..exe
4156	RFQ and Purchase Order 060920A..exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2668 Explorer.EXE

pid	process
2668	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

RFQ and Purchase Order 060920A..exemsiexec.exe

pid	process
4156	RFQ and Purchase Order 060920A..exe
4156	RFQ and Purchase Order 060920A..exe
4156	RFQ and Purchase Order 060920A..exe
3408	msiexec.exe
3408	msiexec.exe
3408	msiexec.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

RFQ and Purchase Order 060920A..exeRFQ and Purchase Order 060920A..exemsiexec.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3908	RFQ and Purchase Order 060920A..exe
Token: SeDebugPrivilege	4156	RFQ and Purchase Order 060920A..exe
Token: SeDebugPrivilege	3408	msiexec.exe
Token: SeShutdownPrivilege	2668	Explorer.EXE
Token: SeCreatePagefilePrivilege	2668	Explorer.EXE
Token: SeShutdownPrivilege	2668	Explorer.EXE
Token: SeCreatePagefilePrivilege	2668	Explorer.EXE

Suspicious use of WriteProcessMemory 23 IoCs

Processes:

RFQ and Purchase Order 060920A..exeExplorer.EXEmsiexec.exe

description	pid	process	target process
PID 3908 wrote to memory of 4528	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 3908 wrote to memory of 4528	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 3908 wrote to memory of 4528	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 3908 wrote to memory of 4524	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 3908 wrote to memory of 4524	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 3908 wrote to memory of 4524	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 3908 wrote to memory of 4156	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 3908 wrote to memory of 4156	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 3908 wrote to memory of 4156	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 3908 wrote to memory of 4156	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 3908 wrote to memory of 4156	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 3908 wrote to memory of 4156	3908	RFQ and Purchase Order 060920A..exe	RFQ and Purchase Order 060920A..exe
PID 2668 wrote to memory of 3408	2668	Explorer.EXE	msiexec.exe
PID 2668 wrote to memory of 3408	2668	Explorer.EXE	msiexec.exe
PID 2668 wrote to memory of 3408	2668	Explorer.EXE	msiexec.exe
PID 3408 wrote to memory of 1200	3408	msiexec.exe	cmd.exe
PID 3408 wrote to memory of 1200	3408	msiexec.exe	cmd.exe
PID 3408 wrote to memory of 1200	3408	msiexec.exe	cmd.exe
PID 3408 wrote to memory of 3420	3408	msiexec.exe	cmd.exe
PID 3408 wrote to memory of 3420	3408	msiexec.exe	cmd.exe
PID 3408 wrote to memory of 3420	3408	msiexec.exe	cmd.exe
PID 3408 wrote to memory of 404	3408	msiexec.exe	Firefox.exe
PID 3408 wrote to memory of 404	3408	msiexec.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2668

C:\Users\Admin\AppData\Local\Temp\RFQ and Purchase Order 060920A..exe
"C:\Users\Admin\AppData\Local\Temp\RFQ and Purchase Order 060920A..exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3908

C:\Users\Admin\AppData\Local\Temp\RFQ and Purchase Order 060920A..exe
"{path}"
3⤵
PID:4528

C:\Users\Admin\AppData\Local\Temp\RFQ and Purchase Order 060920A..exe
"{path}"
3⤵
PID:4524

C:\Users\Admin\AppData\Local\Temp\RFQ and Purchase Order 060920A..exe
"{path}"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4156

C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.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:3408

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\RFQ and Purchase Order 060920A..exe"
3⤵
PID:1200

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:3420

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:404

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

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
memory/1200-142-0x0000000000000000-mapping.dmp

Download
memory/2668-138-0x00000000078C0000-0x0000000007979000-memory.dmp

Filesize
740KB

Download
memory/2668-145-0x0000000007E90000-0x0000000007F34000-memory.dmp

Filesize
656KB

Download
memory/3408-143-0x0000000002A80000-0x0000000002DCA000-memory.dmp

Filesize
3.3MB

Download
memory/3408-139-0x0000000000000000-mapping.dmp

Download
memory/3408-141-0x0000000000970000-0x000000000099D000-memory.dmp

Filesize
180KB

Download
memory/3408-140-0x0000000000A20000-0x0000000000A32000-memory.dmp

Filesize
72KB

Download
memory/3408-144-0x00000000028E0000-0x0000000002973000-memory.dmp

Filesize
588KB

Download
memory/3420-146-0x0000000000000000-mapping.dmp

Download
memory/3908-130-0x0000000074FF0000-0x00000000755A1000-memory.dmp

Filesize
5.7MB

Download
memory/4156-136-0x0000000001740000-0x0000000001A8A000-memory.dmp

Filesize
3.3MB

Download
memory/4156-134-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/4156-137-0x00000000012B0000-0x00000000012C4000-memory.dmp

Filesize
80KB

Download
memory/4156-133-0x0000000000000000-mapping.dmp

Download
memory/4524-132-0x0000000000000000-mapping.dmp

Download
memory/4528-131-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

Loading Replay Monitor...

Downloads