formbook | 3be91a04e20428350874375f4d47ae9240c5e64c7e37deac6fcafd1968933063

General

Target

REQUEST FOR QUOTATION.js
Size

398KB
MD5

221959c0cb83f333ff5626250f07150d
SHA1

edc81bb47ec361697e8a4c989e21ce08b73c9df9
SHA256

3be91a04e20428350874375f4d47ae9240c5e64c7e37deac6fcafd1968933063
SHA512

ea4049d06dac1c16ddf1148998f2d6599f38b0cd2863655e62fcd713b239f2313db89c19c28486da24e7648041fb052b42a966ca68e5512fc1598ab754620b35
SSDEEP

6144:6rnjtDt1a3nLZtHf4ROEGXpWtFRsgDEzVaC+Y8vzOBWesNR0KyfbVX8YBVJlq5:sth1qff4AEQ+EzVaChwO4pK3DVXTa

Score

10^/10

formbook vjw0rm c0e5 rat spyware stealer trojan worm

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c0e5

Decoy

educao.pet

e-race.store

clitzhyper.com

webcheetahtech.online

akkarr.online

odevillage.fit

yaignav.site

191u.us

misionartv.store

leadingpastor.com

claudio-vega.store

9mck753.com

system-reminder.live

landsharesfg.net

lmcsf.top

mkstoreacesse.com

2023.domains

yb8.mobi

2q02f4fyxg7ybb18.digital

logtray.shop

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Vjw0rm
Vjw0rm is a remote access trojan written in JavaScript.
trojan worm vjw0rm

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\bin.exe	formbook
C:\Users\Admin\AppData\Local\Temp\bin.exe	formbook
behavioral1/memory/832-67-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/832-72-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Blocklisted process makes network request 5 IoCs

Processes:

wscript.exe

flow pid process

4 1860 wscript.exe
6 1860 wscript.exe
10 1860 wscript.exe
14 1860 wscript.exe
17 1860 wscript.exe
Executes dropped EXE 1 IoCs

Processes:

bin.exe

pid process

1960 bin.exe

flow	pid	process
4	1860	wscript.exe
6	1860	wscript.exe
10	1860	wscript.exe
14	1860	wscript.exe
17	1860	wscript.exe

Drops startup file 2 IoCs

Processes:

wscript.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PSDyeQsaUR.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\PSDyeQsaUR.js	wscript.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

bin.exechkdsk.exe

description	pid	process	target process
PID 1960 set thread context of 1356	1960	bin.exe	Explorer.EXE
PID 832 set thread context of 1356	832	chkdsk.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
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

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

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

bin.exechkdsk.exe

pid	process
1960	bin.exe
1960	bin.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe
832	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

bin.exechkdsk.exe

pid process

1960 bin.exe
1960 bin.exe
1960 bin.exe
832 chkdsk.exe
832 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

bin.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 1960 bin.exe
Token: SeDebugPrivilege 832 chkdsk.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1356 Explorer.EXE
1356 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1356 Explorer.EXE
1356 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	1960	bin.exe
Token: SeDebugPrivilege	832	chkdsk.exe

pid	process
1356	Explorer.EXE
1356	Explorer.EXE

pid	process
1356	Explorer.EXE
1356	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

wscript.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1612 wrote to memory of 1860	1612	wscript.exe	wscript.exe
PID 1612 wrote to memory of 1860	1612	wscript.exe	wscript.exe
PID 1612 wrote to memory of 1860	1612	wscript.exe	wscript.exe
PID 1612 wrote to memory of 1960	1612	wscript.exe	bin.exe
PID 1612 wrote to memory of 1960	1612	wscript.exe	bin.exe
PID 1612 wrote to memory of 1960	1612	wscript.exe	bin.exe
PID 1612 wrote to memory of 1960	1612	wscript.exe	bin.exe
PID 1356 wrote to memory of 832	1356	Explorer.EXE	chkdsk.exe
PID 1356 wrote to memory of 832	1356	Explorer.EXE	chkdsk.exe
PID 1356 wrote to memory of 832	1356	Explorer.EXE	chkdsk.exe
PID 1356 wrote to memory of 832	1356	Explorer.EXE	chkdsk.exe
PID 832 wrote to memory of 316	832	chkdsk.exe	cmd.exe
PID 832 wrote to memory of 316	832	chkdsk.exe	cmd.exe
PID 832 wrote to memory of 316	832	chkdsk.exe	cmd.exe
PID 832 wrote to memory of 316	832	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:1356

C:\Windows\system32\wscript.exe
wscript.exe "C:\Users\Admin\AppData\Local\Temp\REQUEST FOR QUOTATION.js"
2⤵
- Suspicious use of WriteProcessMemory
PID:1612

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\PSDyeQsaUR.js"
3⤵
- Blocklisted process makes network request
- Drops startup file
PID:1860

C:\Users\Admin\AppData\Local\Temp\bin.exe
"C:\Users\Admin\AppData\Local\Temp\bin.exe"
3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:1960

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:832

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\bin.exe"
3⤵
PID:316

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\bin.exe

Filesize
185KB

MD5
d3ac8e00dd791752d47327d53cdb2515

SHA1
5f820ebe7772a56d71096356443b858ae0b52276

SHA256
e3bdaf1daee2ad35479c213122391cb3d27f193896aef414ce6edb516c0133aa

SHA512
4f181b863e792212507b48374b232ccffa0528a915f3f41529205a3da5c6ce2c8063ad50b57f5ec2bb0e1126eb4d2ab9eb34036d014d633c0eecf3771fff3579

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin.exe

Filesize
185KB

MD5
d3ac8e00dd791752d47327d53cdb2515

SHA1
5f820ebe7772a56d71096356443b858ae0b52276

SHA256
e3bdaf1daee2ad35479c213122391cb3d27f193896aef414ce6edb516c0133aa

SHA512
4f181b863e792212507b48374b232ccffa0528a915f3f41529205a3da5c6ce2c8063ad50b57f5ec2bb0e1126eb4d2ab9eb34036d014d633c0eecf3771fff3579

Download Submit
C:\Users\Admin\AppData\Roaming\PSDyeQsaUR.js

Filesize
23KB

MD5
9cb070f957cf1652af3274a8627dd9d7

SHA1
5a18e73ac27ef4fc4149adbf1dbd408f588fdd97

SHA256
ee5b1100ae9f5ca672543b056e31b058459caa174962a25e5bf5d0e6ad13e600

SHA512
fbcc10c42f34d569c6c0b2f6d63981c7b98a90b1dfbe883bf8254aa25fa6ec4011098e5ae7ed031c48f53c54fae579a52eb16b4f58a7eeda5a4bd3725cd71742

Download Submit
memory/316-65-0x0000000000000000-mapping.dmp

Download
memory/832-63-0x0000000000000000-mapping.dmp

Download
memory/832-66-0x0000000000C50000-0x0000000000C57000-memory.dmp

Filesize
28KB

Download
memory/832-72-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/832-69-0x00000000009C0000-0x0000000000A54000-memory.dmp

Filesize
592KB

Download
memory/832-67-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/832-68-0x0000000002060000-0x0000000002363000-memory.dmp

Filesize
3.0MB

Download
memory/1356-70-0x0000000005EE0000-0x0000000005FBB000-memory.dmp

Filesize
876KB

Download
memory/1356-62-0x00000000048C0000-0x00000000049C3000-memory.dmp

Filesize
1.0MB

Download
memory/1356-71-0x00000000048C0000-0x00000000049C3000-memory.dmp

Filesize
1.0MB

Download
memory/1356-73-0x0000000005EE0000-0x0000000005FBB000-memory.dmp

Filesize
876KB

Download
memory/1612-54-0x000007FEFBD91000-0x000007FEFBD93000-memory.dmp

Filesize
8KB

Download
memory/1860-55-0x0000000000000000-mapping.dmp

Download
memory/1960-57-0x0000000000000000-mapping.dmp

Download
memory/1960-60-0x0000000000A10000-0x0000000000D13000-memory.dmp

Filesize
3.0MB

Download
memory/1960-61-0x00000000002B0000-0x00000000002C5000-memory.dmp

Filesize
84KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads