formbook | 7e99192187bcad849b96bc9cd69254a2e68fef8ad1c73df7a410ba90ef2b898a

General

Target

Quote.js
Size

333KB
MD5

975684a4e4f41819184343aad1824ed8
SHA1

3292e50015630dc896151bafb32049a6521f062d
SHA256

7e99192187bcad849b96bc9cd69254a2e68fef8ad1c73df7a410ba90ef2b898a
SHA512

3c1ebcd24d0305e1685015acf61744f8c8766154309955899309f7bdb7e6c82004201e554aa6f59a68d5c208391478022d4192f8c05631bea64c3e252b26cf11

Score

10^/10

formbook vjw0rm xloader loader persistence rat spyware stealer suricata trojan worm

Malware Config

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
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata: ET MALWARE FormBook CnC Checkin (GET)
suricata

Xloader Payload 6 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\bin.exe	xloader
C:\Users\Admin\AppData\Local\Temp\bin.exe	xloader
behavioral1/memory/1768-68-0x00000000000E0000-0x000000000010D000-memory.dmp	xloader
behavioral1/memory/1768-72-0x00000000000E0000-0x000000000010D000-memory.dmp	xloader
C:\Program Files (x86)\Lnjohb08\vga3f6.exe	xloader
C:\Program Files (x86)\Lnjohb08\vga3f6.exe	xloader

Blocklisted process makes network request 6 IoCs

Processes:

wscript.exemsiexec.exe

flow pid process

4 1152 wscript.exe
11 1152 wscript.exe
20 1152 wscript.exe
28 1768 msiexec.exe
32 1152 wscript.exe
47 1152 wscript.exe
Executes dropped EXE 2 IoCs

Processes:

bin.exevga3f6.exe

pid process

940 bin.exe
1804 vga3f6.exe
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

bin.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation bin.exe

flow	pid	process
4	1152	wscript.exe
11	1152	wscript.exe
20	1152	wscript.exe
28	1768	msiexec.exe
32	1152	wscript.exe
47	1152	wscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Control Panel\International\Geo\Nation	bin.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\jmKZSbFFzi.js	wscript.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\jmKZSbFFzi.js	wscript.exe

Loads dropped DLL 1 IoCs

Processes:

msiexec.exe

pid process

1768 msiexec.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

pid	process
1768	msiexec.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

wscript.exemsiexec.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run	wscript.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-790309383-526510583-3802439154-1000\Software\Microsoft\Windows\CurrentVersion\Run\YVBPFHTJIQ = "\"C:\\Users\\Admin\\AppData\\Roaming\\jmKZSbFFzi.js\""	wscript.exe
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	msiexec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\HJSDOL18N = "C:\\Program Files (x86)\\Lnjohb08\\vga3f6.exe"	msiexec.exe

Suspicious use of SetThreadContext 2 IoCs

Processes:

bin.exemsiexec.exe

description	pid	process	target process
PID 940 set thread context of 1196	940	bin.exe	Explorer.EXE
PID 1768 set thread context of 1196	1768	msiexec.exe	Explorer.EXE

Drops file in Program Files directory 2 IoCs

Processes:

Explorer.EXEmsiexec.exe

description	ioc	process
File created	C:\Program Files (x86)\Lnjohb08\vga3f6.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Lnjohb08\vga3f6.exe	msiexec.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:

msiexec.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-790309383-526510583-3802439154-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	msiexec.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

Processes:

bin.exemsiexec.exevga3f6.exe

pid	process
940	bin.exe
940	bin.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1804	vga3f6.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe
1768	msiexec.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

1196 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

bin.exemsiexec.exe

pid process

940 bin.exe
940 bin.exe
940 bin.exe
1768 msiexec.exe
1768 msiexec.exe
1768 msiexec.exe
1768 msiexec.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

bin.exemsiexec.exevga3f6.exe

description pid process

Token: SeDebugPrivilege 940 bin.exe
Token: SeDebugPrivilege 1768 msiexec.exe
Token: SeDebugPrivilege 1804 vga3f6.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

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

pid	process
1196	Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	940	bin.exe
Token: SeDebugPrivilege	1768	msiexec.exe
Token: SeDebugPrivilege	1804	vga3f6.exe

pid	process
1196	Explorer.EXE
1196	Explorer.EXE

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

Suspicious use of WriteProcessMemory 31 IoCs

Processes:

wscript.exeExplorer.EXEmsiexec.exe

description	pid	process	target process
PID 1040 wrote to memory of 1152	1040	wscript.exe	wscript.exe
PID 1040 wrote to memory of 1152	1040	wscript.exe	wscript.exe
PID 1040 wrote to memory of 1152	1040	wscript.exe	wscript.exe
PID 1040 wrote to memory of 940	1040	wscript.exe	bin.exe
PID 1040 wrote to memory of 940	1040	wscript.exe	bin.exe
PID 1040 wrote to memory of 940	1040	wscript.exe	bin.exe
PID 1040 wrote to memory of 940	1040	wscript.exe	bin.exe
PID 1196 wrote to memory of 1768	1196	Explorer.EXE	msiexec.exe
PID 1196 wrote to memory of 1768	1196	Explorer.EXE	msiexec.exe
PID 1196 wrote to memory of 1768	1196	Explorer.EXE	msiexec.exe
PID 1196 wrote to memory of 1768	1196	Explorer.EXE	msiexec.exe
PID 1196 wrote to memory of 1768	1196	Explorer.EXE	msiexec.exe
PID 1196 wrote to memory of 1768	1196	Explorer.EXE	msiexec.exe
PID 1196 wrote to memory of 1768	1196	Explorer.EXE	msiexec.exe
PID 1768 wrote to memory of 1316	1768	msiexec.exe	cmd.exe
PID 1768 wrote to memory of 1316	1768	msiexec.exe	cmd.exe
PID 1768 wrote to memory of 1316	1768	msiexec.exe	cmd.exe
PID 1768 wrote to memory of 1316	1768	msiexec.exe	cmd.exe
PID 1768 wrote to memory of 1104	1768	msiexec.exe	Firefox.exe
PID 1768 wrote to memory of 1104	1768	msiexec.exe	Firefox.exe
PID 1768 wrote to memory of 1104	1768	msiexec.exe	Firefox.exe
PID 1768 wrote to memory of 1104	1768	msiexec.exe	Firefox.exe
PID 1768 wrote to memory of 1104	1768	msiexec.exe	Firefox.exe
PID 1768 wrote to memory of 1308	1768	msiexec.exe	cmd.exe
PID 1768 wrote to memory of 1308	1768	msiexec.exe	cmd.exe
PID 1768 wrote to memory of 1308	1768	msiexec.exe	cmd.exe
PID 1768 wrote to memory of 1308	1768	msiexec.exe	cmd.exe
PID 1196 wrote to memory of 1804	1196	Explorer.EXE	vga3f6.exe
PID 1196 wrote to memory of 1804	1196	Explorer.EXE	vga3f6.exe
PID 1196 wrote to memory of 1804	1196	Explorer.EXE	vga3f6.exe
PID 1196 wrote to memory of 1804	1196	Explorer.EXE	vga3f6.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1196

C:\Windows\system32\wscript.exe
wscript.exe C:\Users\Admin\AppData\Local\Temp\Quote.js
2⤵
- Suspicious use of WriteProcessMemory
PID:1040

C:\Windows\System32\wscript.exe
"C:\Windows\System32\wscript.exe" //B "C:\Users\Admin\AppData\Roaming\jmKZSbFFzi.js"
3⤵
- Blocklisted process makes network request
- Drops startup file
- Adds Run key to start application
PID:1152

C:\Users\Admin\AppData\Local\Temp\bin.exe
"C:\Users\Admin\AppData\Local\Temp\bin.exe"
3⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:940

C:\Windows\SysWOW64\msiexec.exe
"C:\Windows\SysWOW64\msiexec.exe"
2⤵
- Blocklisted process makes network request
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1768

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\bin.exe"
3⤵
PID:1316

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:1104

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:1308

C:\Program Files (x86)\Lnjohb08\vga3f6.exe
"C:\Program Files (x86)\Lnjohb08\vga3f6.exe"
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1804

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

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

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Downloads

C:\Program Files (x86)\Lnjohb08\vga3f6.exe
Filesize
177KB

MD5
325e9bc40c665d845e9edd875631ec48

SHA1
6f325ce61e9d8916cced15919cbd84fce584e14f

SHA256
c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5

SHA512
02760fc7cd93075f8fdb35e0a87dfee062c718fe03a28408da6a03d37eb6e39a3388c0c01611cee8d28422b930346c92f4242538a29daa8ad0a3b5cdf8d69dc4

Download Submit
C:\Program Files (x86)\Lnjohb08\vga3f6.exe
Filesize
177KB

MD5
325e9bc40c665d845e9edd875631ec48

SHA1
6f325ce61e9d8916cced15919cbd84fce584e14f

SHA256
c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5

SHA512
02760fc7cd93075f8fdb35e0a87dfee062c718fe03a28408da6a03d37eb6e39a3388c0c01611cee8d28422b930346c92f4242538a29daa8ad0a3b5cdf8d69dc4

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
40KB

MD5
b608d407fc15adea97c26936bc6f03f6

SHA1
953e7420801c76393902c0d6bb56148947e41571

SHA256
b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

SHA512
cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin.exe
Filesize
177KB

MD5
325e9bc40c665d845e9edd875631ec48

SHA1
6f325ce61e9d8916cced15919cbd84fce584e14f

SHA256
c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5

SHA512
02760fc7cd93075f8fdb35e0a87dfee062c718fe03a28408da6a03d37eb6e39a3388c0c01611cee8d28422b930346c92f4242538a29daa8ad0a3b5cdf8d69dc4

Download Submit
C:\Users\Admin\AppData\Local\Temp\bin.exe
Filesize
177KB

MD5
325e9bc40c665d845e9edd875631ec48

SHA1
6f325ce61e9d8916cced15919cbd84fce584e14f

SHA256
c3b9bd6a3c03e763f6255c275cbb3a068de6feef7417d18b7a3e92c6b28753e5

SHA512
02760fc7cd93075f8fdb35e0a87dfee062c718fe03a28408da6a03d37eb6e39a3388c0c01611cee8d28422b930346c92f4242538a29daa8ad0a3b5cdf8d69dc4

Download Submit
C:\Users\Admin\AppData\Roaming\jmKZSbFFzi.js
Filesize
5KB

MD5
9863c73f15497e207b6cc2bb6a6b478f

SHA1
4c6fb94ac90f82ed1597b49ff325bf3f4ab57f1e

SHA256
412723906aba11c0c59dd6c68ae931cfa576d0ca669679b23d16769b82a1a81d

SHA512
aed1e675dd8c2a4b95d437862f074675bd2fc8eea1ab99dc9075fecda41bdc394288eb72ab9a1f34877313ae0dd6003c2c868a17187c59c76f0fd8d6037a7ccc

Download Submit
\Users\Admin\AppData\Local\Temp\sqlite3.dll
Filesize
635KB

MD5
ee68b052a08fec0f574f2dae2003df27

SHA1
4fe217c85e91d3ae7c46acbc03b9ca6565a29a92

SHA256
cf5301c28275b1f04d5ebaecc7fc4ebd9ebc970e1c2c9512f5380e263bf9ddfd

SHA512
d39c9560380c8f8c0a8e15dd3c577bad6d1ffc479afb9dc81e67bc2510f61e8c9fca723c2b931065738b1f554bab73ff934e65fcf4334df1e1539ebd566dfab2

Download Submit
memory/940-57-0x0000000000000000-mapping.dmp

Download
memory/940-60-0x00000000007D0000-0x0000000000AD3000-memory.dmp

Filesize
3.0MB

Download
memory/940-61-0x0000000000270000-0x0000000000281000-memory.dmp

Filesize
68KB

Download
memory/1040-54-0x000007FEFBF01000-0x000007FEFBF03000-memory.dmp

Filesize
8KB

Download
memory/1152-55-0x0000000000000000-mapping.dmp

Download
memory/1196-73-0x0000000004E40000-0x0000000004F5D000-memory.dmp

Filesize
1.1MB

Download
memory/1196-62-0x0000000002AF0000-0x0000000002BA9000-memory.dmp

Filesize
740KB

Download
memory/1196-71-0x0000000004E40000-0x0000000004F5D000-memory.dmp

Filesize
1.1MB

Download
memory/1308-75-0x0000000000000000-mapping.dmp

Download
memory/1316-66-0x0000000000000000-mapping.dmp

Download
memory/1768-70-0x0000000000AD0000-0x0000000000B60000-memory.dmp

Filesize
576KB

Download
memory/1768-67-0x0000000000D00000-0x0000000000D14000-memory.dmp

Filesize
80KB

Download
memory/1768-72-0x00000000000E0000-0x000000000010D000-memory.dmp

Filesize
180KB

Download
memory/1768-69-0x00000000022B0000-0x00000000025B3000-memory.dmp

Filesize
3.0MB

Download
memory/1768-64-0x0000000076811000-0x0000000076813000-memory.dmp

Filesize
8KB

Download
memory/1768-63-0x0000000000000000-mapping.dmp

Download
memory/1768-68-0x00000000000E0000-0x000000000010D000-memory.dmp

Filesize
180KB

Download
memory/1804-77-0x0000000000000000-mapping.dmp

Download
memory/1804-79-0x0000000000970000-0x0000000000C73000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads