formbook | b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5

General

Target

b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe
Size

463KB
MD5

4d4d6884fc7d0bfd244994a57a299c66
SHA1

74f63690ee02781983d81405d4acf43bed038c6c
SHA256

b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5
SHA512

d9f074fd06fd50a2ec887a6219caa123db8bc1590f1e481f48396f42de77b0eaa837f06a4208972e6f64bb3702346ba001ace910dd3a379b0d89b51caa821e27
SSDEEP

6144:A3SUuzCaxOPyxKMQV6WjBZI3kqegi5+ck5hyrGaMvaZecVa+:A3rAePqQhBS3UKy/UcV

Score

10^/10

formbook f4ca rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

f4ca

Decoy

QYZ6iE9Y+CsiZpCBareS0uU=

N2FQLAaH6xXE

Vc6t0MQXN+Llxsqg

ElBedmSvYGGm6yLDhHqzAtmlCxWl

4VpIWShqHR5cpjfQ4bs=

mepO9miu/iFiQQ==

Z8Owqh54IlwEpDfQ4bs=

qcq4uT5HecWZG3EVwKTiUE7slrGQGiyo

IaYYoJikKDDqgV/NigZCLA==

4Xz5pfoCCW/76NnOUrFEOw==

xiijSkVJ3Yuh9OKDcmui/d2lCxWl

cr8MmfpCEu0ULsO3p6w=

JLm2yKHo7hdVb8O3p6w=

Hriy5svWm2Qfq9mPQib9jJI65gOr

2G3nkRpidunlxsqg

gPHUAeXmi8Q9ARy3

6l5WaOf8BxhQDkp5gKQ=

KHHiXs4WOqXZdPhpaw==

+UQ5Vz5O0Ms9ARy3

pNQygKu0OziAvjOHRGLnJA==

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Blocklisted process makes network request 1 IoCs

Processes:

cmd.exe

flow pid process

8 576 cmd.exe
Loads dropped DLL 1 IoCs

Processes:

cmd.exe

pid process

576 cmd.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

flow	pid	process
8	576	cmd.exe

pid	process
576	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exeregsvcs.execmd.exe

description	pid	process	target process
PID 1252 set thread context of 2028	1252	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 2028 set thread context of 1260	2028	regsvcs.exe	Explorer.EXE
PID 576 set thread context of 1260	576	cmd.exe	Explorer.EXE

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

cmd.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-1563773381-2037468142-1146002597-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cmd.exe

Suspicious behavior: EnumeratesProcesses 27 IoCs

Processes:

regsvcs.execmd.exe

pid	process
2028	regsvcs.exe
2028	regsvcs.exe
2028	regsvcs.exe
2028	regsvcs.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe
576	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

regsvcs.execmd.exe

pid process

2028 regsvcs.exe
2028 regsvcs.exe
2028 regsvcs.exe
576 cmd.exe
576 cmd.exe
576 cmd.exe
576 cmd.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

regsvcs.execmd.exe

description pid process

Token: SeDebugPrivilege 2028 regsvcs.exe
Token: SeDebugPrivilege 576 cmd.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE
1260 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1260 Explorer.EXE
1260 Explorer.EXE

pid	process
1260	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2028	regsvcs.exe
Token: SeDebugPrivilege	576	cmd.exe

pid	process
1260	Explorer.EXE
1260	Explorer.EXE

pid	process
1260	Explorer.EXE
1260	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exeExplorer.EXEcmd.exe

description	pid	process	target process
PID 1252 wrote to memory of 2028	1252	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 1252 wrote to memory of 2028	1252	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 1252 wrote to memory of 2028	1252	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 1252 wrote to memory of 2028	1252	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 1252 wrote to memory of 2028	1252	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 1252 wrote to memory of 2028	1252	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 1252 wrote to memory of 2028	1252	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 1252 wrote to memory of 2028	1252	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 1252 wrote to memory of 2028	1252	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 1252 wrote to memory of 2028	1252	b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe	regsvcs.exe
PID 1260 wrote to memory of 576	1260	Explorer.EXE	cmd.exe
PID 1260 wrote to memory of 576	1260	Explorer.EXE	cmd.exe
PID 1260 wrote to memory of 576	1260	Explorer.EXE	cmd.exe
PID 1260 wrote to memory of 576	1260	Explorer.EXE	cmd.exe
PID 576 wrote to memory of 1608	576	cmd.exe	Firefox.exe
PID 576 wrote to memory of 1608	576	cmd.exe	Firefox.exe
PID 576 wrote to memory of 1608	576	cmd.exe	Firefox.exe
PID 576 wrote to memory of 1608	576	cmd.exe	Firefox.exe
PID 576 wrote to memory of 1608	576	cmd.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1260

C:\Users\Admin\AppData\Local\Temp\b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe
"C:\Users\Admin\AppData\Local\Temp\b4510b5db7db58da65f4d1bd545a5ca892fbd9c8ed6551abd90f64241bdeb4b5.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1252

C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\regsvcs.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2028

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\SysWOW64\cmd.exe"
2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:576

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1608

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

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\o0hxi.zip
Filesize
498KB

MD5
8517bf92c0fd6228875ba74b2526b3b4

SHA1
7aa157feed160f7e207ce961aaee21e3075b3ab9

SHA256
536ad85a299f5f7afc36f5944ea55d9f32495491265bf1305a41b3667176998d

SHA512
929c686123eb405c258d3ece2466b69f641041c2e2b7a4c13c7efa58a6654b387ac1ee4f7c643e70c84b38eddf39eccc6f816420e731e899468c9ab0fb9a2732

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
949KB

MD5
38a3e021eb32c9976adaf0b3372080fc

SHA1
68e02803c646be21007d90bec841c176b82211fd

SHA256
8cde0275d60da0d11954f73c7c8862cfc4b306f61bb8b1ce14abe4a193af2652

SHA512
b886cc112f2750e7300b66f7242850659fa49fdc97f75aed376cb9f5440875f303a143bf8b51068ec42674f1ebe1dfcc40534f3a7aed3cc4d20f9274b9a66d18

Download Submit
memory/576-76-0x0000000001ED0000-0x0000000001F5F000-memory.dmp

Filesize
572KB

Download
memory/576-68-0x000000004A860000-0x000000004A8AC000-memory.dmp

Filesize
304KB

Download
memory/576-293-0x0000000061E00000-0x0000000061ED7000-memory.dmp

Filesize
860KB

Download
memory/576-73-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/576-72-0x0000000002000000-0x0000000002303000-memory.dmp

Filesize
3.0MB

Download
memory/576-71-0x0000000000080000-0x00000000000AD000-memory.dmp

Filesize
180KB

Download
memory/576-70-0x000000004A860000-0x000000004A8AC000-memory.dmp

Filesize
304KB

Download
memory/1252-56-0x00000000003C0000-0x00000000003CC000-memory.dmp

Filesize
48KB

Download
memory/1252-54-0x0000000000A00000-0x0000000000A76000-memory.dmp

Filesize
472KB

Download
memory/1252-55-0x0000000001F20000-0x0000000001F68000-memory.dmp

Filesize
288KB

Download
memory/1252-57-0x00000000003D0000-0x00000000003D8000-memory.dmp

Filesize
32KB

Download
memory/1260-78-0x0000000006E00000-0x0000000006F62000-memory.dmp

Filesize
1.4MB

Download
memory/1260-75-0x00000000037A0000-0x00000000038A0000-memory.dmp

Filesize
1024KB

Download
memory/1260-67-0x0000000004F20000-0x0000000005006000-memory.dmp

Filesize
920KB

Download
memory/1260-77-0x0000000006E00000-0x0000000006F62000-memory.dmp

Filesize
1.4MB

Download
memory/1260-80-0x0000000006E00000-0x0000000006F62000-memory.dmp

Filesize
1.4MB

Download
memory/2028-60-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2028-69-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2028-66-0x00000000000C0000-0x00000000000D0000-memory.dmp

Filesize
64KB

Download
memory/2028-65-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download
memory/2028-63-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2028-61-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2028-59-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2028-58-0x0000000000400000-0x000000000042F000-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