formbook | 38eca2a25088bfa832212231f4c7c600a2dd215931824c55cb15e7478f7c8c15

General

Target

1fuKoR0haiNZQZy.exe
Size

491KB
MD5

cd93fbbaa838564b7cd7cfae170713b0
SHA1

d0d38719d7e8b68d320a8d78eada9c7cd66f296c
SHA256

38eca2a25088bfa832212231f4c7c600a2dd215931824c55cb15e7478f7c8c15
SHA512

422950d397132986e8d1e759a37103cac3df8757f0bb0c284a5a65fae11bbce57c99c8a7c888e22fc88c3511998f8b963278d494dba728b7213b7f8fee6cdc11

Score

10^/10

formbook rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

C2

http://www.ncessity.com/awib/

Decoy

afrotl.com

highlandterracehome.com

bucklebelt.site

pipematch.com

babybkids.com

karpoforo.com

actforsea.com

kikizubrecords.com

mydibit.com

kdot.design

gerritsmontage.com

hurawn.com

judithtidwell.com

zoaies.com

ssboatzul.com

elevictory.com

data-4gviettel.club

znfyoug.icu

warnermusic.group

jxkuljhc.icu

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
behavioral2/memory/4088-15-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/4088-16-0x000000000041ECE0-mapping.dmp	formbook
behavioral2/memory/4300-24-0x0000000000940000-0x000000000096E000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

Processes:

1fuKoR0haiNZQZy.exe1fuKoR0haiNZQZy.exewlanext.exe

description	pid	process	target process
PID 4688 set thread context of 4088	4688	1fuKoR0haiNZQZy.exe	1fuKoR0haiNZQZy.exe
PID 4088 set thread context of 3128	4088	1fuKoR0haiNZQZy.exe	Explorer.EXE
PID 4300 set thread context of 3128	4300	wlanext.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
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

3384 schtasks.exe

pid	process
3384	schtasks.exe

Suspicious behavior: EnumeratesProcesses 21 IoCs

Processes:

1fuKoR0haiNZQZy.exe1fuKoR0haiNZQZy.exewlanext.exe

pid	process
4688	1fuKoR0haiNZQZy.exe
4088	1fuKoR0haiNZQZy.exe
4088	1fuKoR0haiNZQZy.exe
4088	1fuKoR0haiNZQZy.exe
4088	1fuKoR0haiNZQZy.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe
4300	wlanext.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

1fuKoR0haiNZQZy.exewlanext.exe

pid process

4088 1fuKoR0haiNZQZy.exe
4088 1fuKoR0haiNZQZy.exe
4088 1fuKoR0haiNZQZy.exe
4300 wlanext.exe
4300 wlanext.exe

pid	process
4088	1fuKoR0haiNZQZy.exe
4088	1fuKoR0haiNZQZy.exe
4088	1fuKoR0haiNZQZy.exe
4300	wlanext.exe
4300	wlanext.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

1fuKoR0haiNZQZy.exe1fuKoR0haiNZQZy.exewlanext.exe

description	pid	process
Token: SeDebugPrivilege	4688	1fuKoR0haiNZQZy.exe
Token: SeDebugPrivilege	4088	1fuKoR0haiNZQZy.exe
Token: SeDebugPrivilege	4300	wlanext.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

1fuKoR0haiNZQZy.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 4688 wrote to memory of 3384	4688	1fuKoR0haiNZQZy.exe	schtasks.exe
PID 4688 wrote to memory of 3384	4688	1fuKoR0haiNZQZy.exe	schtasks.exe
PID 4688 wrote to memory of 3384	4688	1fuKoR0haiNZQZy.exe	schtasks.exe
PID 4688 wrote to memory of 4088	4688	1fuKoR0haiNZQZy.exe	1fuKoR0haiNZQZy.exe
PID 4688 wrote to memory of 4088	4688	1fuKoR0haiNZQZy.exe	1fuKoR0haiNZQZy.exe
PID 4688 wrote to memory of 4088	4688	1fuKoR0haiNZQZy.exe	1fuKoR0haiNZQZy.exe
PID 4688 wrote to memory of 4088	4688	1fuKoR0haiNZQZy.exe	1fuKoR0haiNZQZy.exe
PID 4688 wrote to memory of 4088	4688	1fuKoR0haiNZQZy.exe	1fuKoR0haiNZQZy.exe
PID 4688 wrote to memory of 4088	4688	1fuKoR0haiNZQZy.exe	1fuKoR0haiNZQZy.exe
PID 3128 wrote to memory of 4300	3128	Explorer.EXE	wlanext.exe
PID 3128 wrote to memory of 4300	3128	Explorer.EXE	wlanext.exe
PID 3128 wrote to memory of 4300	3128	Explorer.EXE	wlanext.exe
PID 4300 wrote to memory of 4420	4300	wlanext.exe	cmd.exe
PID 4300 wrote to memory of 4420	4300	wlanext.exe	cmd.exe
PID 4300 wrote to memory of 4420	4300	wlanext.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3128

C:\Users\Admin\AppData\Local\Temp\1fuKoR0haiNZQZy.exe
"C:\Users\Admin\AppData\Local\Temp\1fuKoR0haiNZQZy.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4688

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\kNBjsouyZBQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC2D4.tmp"
3⤵
- Creates scheduled task(s)
PID:3384

C:\Users\Admin\AppData\Local\Temp\1fuKoR0haiNZQZy.exe
"C:\Users\Admin\AppData\Local\Temp\1fuKoR0haiNZQZy.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4088

C:\Windows\SysWOW64\wlanext.exe
"C:\Windows\SysWOW64\wlanext.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4300

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\1fuKoR0haiNZQZy.exe"
3⤵
PID:4420

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpC2D4.tmp

MD5
92ea875f155ab3aaad6a5a9389e0a3f9

SHA1
6d0da33f1d82a8cc726e435c138cc3cbd4e7bfdc

SHA256
60e996bd27408b220b44f374eb2fa076055bf7970c4a9de9745890274b96c30a

SHA512
8ee43842ceaf326471a7aa73d0b70b6a18b0ba4538112aac44c734e12ed33f28d605799223e7708dfabde3728dc72427a343211f00378ca7ec6340465296f441

Download Submit
memory/3128-20-0x0000000000AF0000-0x0000000000C2F000-memory.dmp

Filesize
1.2MB

Download
memory/3128-29-0x0000000005F30000-0x0000000006054000-memory.dmp

Filesize
1.1MB

Download
memory/3384-13-0x0000000000000000-mapping.dmp

Download
memory/4088-15-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/4088-16-0x000000000041ECE0-mapping.dmp

Download
memory/4088-19-0x0000000001190000-0x00000000011A4000-memory.dmp

Filesize
80KB

Download
memory/4088-18-0x00000000011B0000-0x00000000014D0000-memory.dmp

Filesize
3.1MB

Download
memory/4300-25-0x0000000003320000-0x0000000003640000-memory.dmp

Filesize
3.1MB

Download
memory/4300-21-0x0000000000000000-mapping.dmp

Download
memory/4300-24-0x0000000000940000-0x000000000096E000-memory.dmp

Filesize
184KB

Download
memory/4300-23-0x0000000000BB0000-0x0000000000BC7000-memory.dmp

Filesize
92KB

Download
memory/4300-28-0x00000000030E0000-0x0000000003173000-memory.dmp

Filesize
588KB

Download
memory/4420-22-0x0000000000000000-mapping.dmp

Download
memory/4688-12-0x0000000001430000-0x0000000001485000-memory.dmp

Filesize
340KB

Download
memory/4688-11-0x0000000005760000-0x0000000005763000-memory.dmp

Filesize
12KB

Download
memory/4688-10-0x00000000056E0000-0x00000000056E1000-memory.dmp

Filesize
4KB

Download
memory/4688-9-0x0000000005410000-0x0000000005411000-memory.dmp

Filesize
4KB

Download
memory/4688-2-0x0000000073900000-0x0000000073FEE000-memory.dmp

Filesize
6.9MB

Download
memory/4688-8-0x0000000005610000-0x0000000005611000-memory.dmp

Filesize
4KB

Download
memory/4688-7-0x00000000054D0000-0x00000000054D1000-memory.dmp

Filesize
4KB

Download
memory/4688-6-0x0000000005930000-0x0000000005931000-memory.dmp

Filesize
4KB

Download
memory/4688-5-0x0000000005340000-0x0000000005341000-memory.dmp

Filesize
4KB

Download
memory/4688-3-0x00000000009B0000-0x00000000009B1000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads