formbook | 7aa65f77c48841f9f1545c2e5bb7cb186cd259631c4c449400206f1bb3d16d5e

General

Target

SCAN_20210115140930669.exe
Size

892KB
MD5

c0aa1598d486cceab2fdea9a6c41ac0e
SHA1

21263c3f531b81d949bf15c486bc3aeb16b9bb00
SHA256

7aa65f77c48841f9f1545c2e5bb7cb186cd259631c4c449400206f1bb3d16d5e
SHA512

2bba64e13254b3b5dfe98fac0681335a23a801065ffc1a69a80e63d8144067f98edb8c0b252ab8953ac78798dc4b23e4bff188d9ad3508997f6dfa4b7e987c65

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.midnightblueinc.com/2kf/

Decoy

edmondscakes.com

doublewldr.online

tickets2usa.com

heyhxry.com

weightloss-gulfport.com

prosselius.com

newviewroofers.com

jacksonarearealestate.com

catparkas.xyz

pagos2020.com

sonwsefjrahi.online

franchisethings.com

nuocvietngaynay.com

sohelvai.com

mikeyroush.com

lamesaroofing.com

betbigo138.com

amazon-service-recovery.com

clockin.net

riostrader.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook

Formbook Payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1700-9-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral1/memory/1700-10-0x000000000041EB30-mapping.dmp	formbook
behavioral1/memory/1312-11-0x0000000000000000-mapping.dmp	formbook

Deletes itself 1 IoCs

Processes:

cmd.exe

pid process

1848 cmd.exe

pid	process
1848	cmd.exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

SCAN_20210115140930669.exeSCAN_20210115140930669.exechkdsk.exe

description	pid	process	target process
PID 1840 set thread context of 1700	1840	SCAN_20210115140930669.exe	SCAN_20210115140930669.exe
PID 1700 set thread context of 1196	1700	SCAN_20210115140930669.exe	Explorer.EXE
PID 1700 set thread context of 1196	1700	SCAN_20210115140930669.exe	Explorer.EXE
PID 1312 set thread context of 1196	1312	chkdsk.exe	Explorer.EXE

Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

1300 schtasks.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

pid	process
1300	schtasks.exe

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

Suspicious behavior: EnumeratesProcesses 19 IoCs

Processes:

SCAN_20210115140930669.exechkdsk.exe

pid	process
1700	SCAN_20210115140930669.exe
1700	SCAN_20210115140930669.exe
1700	SCAN_20210115140930669.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe
1312	chkdsk.exe

Suspicious behavior: MapViewOfSection 6 IoCs

Processes:

SCAN_20210115140930669.exechkdsk.exe

pid	process
1700	SCAN_20210115140930669.exe
1700	SCAN_20210115140930669.exe
1700	SCAN_20210115140930669.exe
1700	SCAN_20210115140930669.exe
1312	chkdsk.exe
1312	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SCAN_20210115140930669.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 1700 SCAN_20210115140930669.exe
Token: SeDebugPrivilege 1312 chkdsk.exe
Suspicious use of FindShellTrayWindow 4 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
Suspicious use of SendNotifyMessage 4 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE
1196 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1700	SCAN_20210115140930669.exe
Token: SeDebugPrivilege	1312	chkdsk.exe

pid	process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

pid	process
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE
1196	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

SCAN_20210115140930669.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1840 wrote to memory of 1300	1840	SCAN_20210115140930669.exe	schtasks.exe
PID 1840 wrote to memory of 1300	1840	SCAN_20210115140930669.exe	schtasks.exe
PID 1840 wrote to memory of 1300	1840	SCAN_20210115140930669.exe	schtasks.exe
PID 1840 wrote to memory of 1300	1840	SCAN_20210115140930669.exe	schtasks.exe
PID 1840 wrote to memory of 1700	1840	SCAN_20210115140930669.exe	SCAN_20210115140930669.exe
PID 1840 wrote to memory of 1700	1840	SCAN_20210115140930669.exe	SCAN_20210115140930669.exe
PID 1840 wrote to memory of 1700	1840	SCAN_20210115140930669.exe	SCAN_20210115140930669.exe
PID 1840 wrote to memory of 1700	1840	SCAN_20210115140930669.exe	SCAN_20210115140930669.exe
PID 1840 wrote to memory of 1700	1840	SCAN_20210115140930669.exe	SCAN_20210115140930669.exe
PID 1840 wrote to memory of 1700	1840	SCAN_20210115140930669.exe	SCAN_20210115140930669.exe
PID 1840 wrote to memory of 1700	1840	SCAN_20210115140930669.exe	SCAN_20210115140930669.exe
PID 1196 wrote to memory of 1312	1196	Explorer.EXE	chkdsk.exe
PID 1196 wrote to memory of 1312	1196	Explorer.EXE	chkdsk.exe
PID 1196 wrote to memory of 1312	1196	Explorer.EXE	chkdsk.exe
PID 1196 wrote to memory of 1312	1196	Explorer.EXE	chkdsk.exe
PID 1312 wrote to memory of 1848	1312	chkdsk.exe	cmd.exe
PID 1312 wrote to memory of 1848	1312	chkdsk.exe	cmd.exe
PID 1312 wrote to memory of 1848	1312	chkdsk.exe	cmd.exe
PID 1312 wrote to memory of 1848	1312	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1196

C:\Users\Admin\AppData\Local\Temp\SCAN_20210115140930669.exe
"C:\Users\Admin\AppData\Local\Temp\SCAN_20210115140930669.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1840

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CuWqoOcxq" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4F0A.tmp"
3⤵
- Creates scheduled task(s)
PID:1300

C:\Users\Admin\AppData\Local\Temp\SCAN_20210115140930669.exe
"C:\Users\Admin\AppData\Local\Temp\SCAN_20210115140930669.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1700

C:\Windows\SysWOW64\autofmt.exe
"C:\Windows\SysWOW64\autofmt.exe"
2⤵
PID:792

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1312

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\SCAN_20210115140930669.exe"
3⤵
- Deletes itself
PID:1848

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp4F0A.tmp
MD5
0860d69be3ca8e253785e0b85151d500

SHA1
72f56430c14508e767fb471b0996a8b4b788e1bd

SHA256
c136fa6d0060d93637e1fb0f69bbb5d643177a3d4af55c1c40f0b401ac3bcb92

SHA512
f8b7478c8beb9b9b20d84e43a58b2c77b74472f85aee254b86b8d388b1d631fc034801f41544c8a505e99357c918f14740f39f063c146dea1e3949bd87799607

Download Submit
memory/1300-7-0x0000000000000000-mapping.dmp

Download
memory/1312-11-0x0000000000000000-mapping.dmp

Download
memory/1312-12-0x0000000000B00000-0x0000000000B07000-memory.dmp

Filesize
28KB

Download
memory/1312-14-0x0000000003180000-0x000000000329E000-memory.dmp

Filesize
1.1MB

Download
memory/1700-9-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1700-10-0x000000000041EB30-mapping.dmp

Download
memory/1840-2-0x00000000749E0000-0x00000000750CE000-memory.dmp

Filesize
6.9MB

Download
memory/1840-3-0x0000000000EA0000-0x0000000000EA1000-memory.dmp

Filesize
4KB

Download
memory/1840-5-0x0000000000540000-0x0000000000552000-memory.dmp

Filesize
72KB

Download
memory/1840-6-0x0000000004F90000-0x0000000004FF6000-memory.dmp

Filesize
408KB

Download
memory/1848-13-0x0000000000000000-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