formbook | d4debc692c46662beafe17cfe99f61ef6df421baf190174620458926bebfd080

General

Target

Purchase Order 564537737 May.exe
Size

411KB
MD5

bf15960dd7174427df765fd9f9203521
SHA1

cb1de1df0c3b1a1cc70a28629ac51d67901b17aa
SHA256

9187706072f008a27c26421791f57ec33a59b44b012500b2db3eeb48136fb2da
SHA512

7e8b9907233234440135f27ad813db97e20790baf8cb92949ae9185fa09cb4b7b0da35b6da2b33f3ac64a33545f32f959d90d73f7a6a4f14988c8ac3fd005074

Score

10^/10

formbook i0qi persistence rat spyware stealer suricata trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

i0qi

Decoy

mytakeawaybox.com

goutaihuo.com

kuzey.site

uppertenpiercings.amsterdam

honeygrandpa.com

jenniferabramslaw.com

ncarian.com

heavilymeditatedhouston.com

gsbjyzx.com

akisanblog.com

taoyuanreed.com

jasperrvservices.com

yabbanet.com

myhealthfuldiet.com

flipdigitalcoins.com

toes.photos

shoottillyoumiss.com

maserental.com

smarteacher.net

hamdimagdeco.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/5012-133-0x0000000005980000-0x00000000059AD000-memory.dmp	formbook
behavioral2/memory/4924-140-0x0000000000350000-0x000000000037D000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 1 IoCs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

Processes:

msdt.exe

description ioc process

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

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

Maps connected drives based on registry 3 TTPs 2 IoCs

Disk information is often read in order to detect sandboxing environments.

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

Purchase Order 564537737 May.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\disk\Enum\0	Purchase Order 564537737 May.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	Purchase Order 564537737 May.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

Purchase Order 564537737 May.exemsdt.exe

description	pid	process	target process
PID 5012 set thread context of 2832	5012	Purchase Order 564537737 May.exe	Explorer.EXE
PID 4924 set thread context of 2832	4924	msdt.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

msdt.exe

description ioc process

File opened for modification C:\Program Files (x86)\Yttoxjlm\audiodghrqx.exe msdt.exe

description	ioc	process
File opened for modification	C:\Program Files (x86)\Yttoxjlm\audiodghrqx.exe	msdt.exe

Suspicious behavior: EnumeratesProcesses 56 IoCs

Processes:

Purchase Order 564537737 May.exemsdt.exe

pid	process
5012	Purchase Order 564537737 May.exe
5012	Purchase Order 564537737 May.exe
5012	Purchase Order 564537737 May.exe
5012	Purchase Order 564537737 May.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe
4924	msdt.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

2832 Explorer.EXE
Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Purchase Order 564537737 May.exemsdt.exe

pid process

5012 Purchase Order 564537737 May.exe
5012 Purchase Order 564537737 May.exe
5012 Purchase Order 564537737 May.exe
4924 msdt.exe
4924 msdt.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Purchase Order 564537737 May.exemsdt.exe

description pid process

Token: SeDebugPrivilege 5012 Purchase Order 564537737 May.exe
Token: SeDebugPrivilege 4924 msdt.exe

pid	process
2832	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	5012	Purchase Order 564537737 May.exe
Token: SeDebugPrivilege	4924	msdt.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

Explorer.EXEmsdt.exe

description	pid	process	target process
PID 2832 wrote to memory of 4924	2832	Explorer.EXE	msdt.exe
PID 2832 wrote to memory of 4924	2832	Explorer.EXE	msdt.exe
PID 2832 wrote to memory of 4924	2832	Explorer.EXE	msdt.exe
PID 4924 wrote to memory of 5096	4924	msdt.exe	cmd.exe
PID 4924 wrote to memory of 5096	4924	msdt.exe	cmd.exe
PID 4924 wrote to memory of 5096	4924	msdt.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:2832

C:\Users\Admin\AppData\Local\Temp\Purchase Order 564537737 May.exe
"C:\Users\Admin\AppData\Local\Temp\Purchase Order 564537737 May.exe"
2⤵
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:5012

C:\Windows\SysWOW64\msdt.exe
"C:\Windows\SysWOW64\msdt.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4924

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Purchase Order 564537737 May.exe"
3⤵
PID:5096

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

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Peripheral Device Discovery

1

T1120

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/2832-136-0x0000000008790000-0x00000000088C6000-memory.dmp

Filesize
1.2MB

Download
memory/2832-143-0x0000000008A60000-0x0000000008BA5000-memory.dmp

Filesize
1.3MB

Download
memory/4924-139-0x0000000002710000-0x0000000002A5A000-memory.dmp

Filesize
3.3MB

Download
memory/4924-137-0x0000000000000000-mapping.dmp

Download
memory/4924-138-0x0000000000DA0000-0x0000000000DF7000-memory.dmp

Filesize
348KB

Download
memory/4924-140-0x0000000000350000-0x000000000037D000-memory.dmp

Filesize
180KB

Download
memory/4924-142-0x0000000002450000-0x00000000024E3000-memory.dmp

Filesize
588KB

Download
memory/5012-133-0x0000000005980000-0x00000000059AD000-memory.dmp

Filesize
180KB

Download
memory/5012-134-0x00000000064A0000-0x00000000067EA000-memory.dmp

Filesize
3.3MB

Download
memory/5012-135-0x0000000005940000-0x0000000005EE4000-memory.dmp

Filesize
5.6MB

Download
memory/5012-132-0x0000000005940000-0x0000000005EE4000-memory.dmp

Filesize
5.6MB

Download
memory/5012-130-0x0000000000D90000-0x0000000000DFE000-memory.dmp

Filesize
440KB

Download
memory/5012-131-0x0000000005EF0000-0x0000000006494000-memory.dmp

Filesize
5.6MB

Download
memory/5096-141-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads