formbook | f910b739d3d727fc1f5acde88b0740a575c603dc6c61246156c5debd6bd126bc

Resubmissions

14/09/2023, 16:50

230914-vccteadd3x 10

10/08/2020, 09:13

200810-2b9zl1cdns 10

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20230831-en
resource tags

arch:x64arch:x86image:win10v2004-20230831-enlocale:en-usos:windows10-2004-x64system
submitted
14/09/2023, 16:50

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General

Target

Quotationv.exe
Size

669KB
MD5

52cfc15a97799e70a8b4a39b04bc8e2b
SHA1

2cfa4daab21dd8115167a3ccba0080f5fdad63ff
SHA256

f910b739d3d727fc1f5acde88b0740a575c603dc6c61246156c5debd6bd126bc
SHA512

95b7d0c4942703ebfec9d405bfe08efd1f11c2af3b9f65e05bef5afb3440fabcff5e5733de9bec824331d6b22c26e72419e25ca66a6948c07c0c4d4cc98fcdc3
SSDEEP

12288:lZq251MgHoOqx2sw/6h1/6tj/jrgLLZTh45s+hKeOknD1rfF32grpiAFKWDckjQc:3PjQLlahnrNbQAZgkj5

Score

10^/10

formbook pdup persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

pdup

Decoy

mycharlesschwab.com

casinocode.online

lesliemostellerart.com

cdtevergreen.com

jualpenirumasli.com

lvyouonline.com

moteaiai.com

coachmo13.com

lampungtimur.com

sellmycapecodhouse.com

wearschool.com

onlinekazancyollari.com

ubmotherhood.com

sqyxedu.com

sibate518.com

energygv.com

sathsathhain.com

paperghostsbook.com

investinbritain.net

tansuokeji.ink

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/2516-5-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/2516-10-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1988-15-0x0000000000770000-0x000000000079E000-memory.dmp	formbook
behavioral2/memory/1988-17-0x0000000000770000-0x000000000079E000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	NETSTAT.EXE
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\ZJG4YVQ8B6N = "C:\\Program Files (x86)\\Fvfl4w\\o0hxmdnnx40dddp.exe"	NETSTAT.EXE

Executes dropped EXE 1 IoCs

pid	Process
1068	o0hxmdnnx40dddp.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
T1552.001

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4400 set thread context of 2516	4400	Quotationv.exe	94
PID 2516 set thread context of 3128	2516	Quotationv.exe	15
PID 1988 set thread context of 3128	1988	NETSTAT.EXE	15

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Fvfl4w\o0hxmdnnx40dddp.exe	NETSTAT.EXE
File opened for modification	C:\Program Files (x86)\Fvfl4w	Explorer.EXE
File created	C:\Program Files (x86)\Fvfl4w\o0hxmdnnx40dddp.exe	Explorer.EXE
File opened for modification	C:\Program Files (x86)\Fvfl4w\o0hxmdnnx40dddp.exe	Explorer.EXE

Gathers network information 2 TTPs 1 IoCs

Uses commandline utility to view network configuration.

System Information Discovery

T1082

Command and Scripting Interpreter

T1059

pid	Process
1988	NETSTAT.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-4272677097-406801653-1594978504-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	NETSTAT.EXE

Suspicious behavior: EnumeratesProcesses 43 IoCs

pid	Process
4400	Quotationv.exe
4400	Quotationv.exe
4400	Quotationv.exe
2516	Quotationv.exe
2516	Quotationv.exe
2516	Quotationv.exe
2516	Quotationv.exe
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3128	Explorer.EXE

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2516	Quotationv.exe
2516	Quotationv.exe
2516	Quotationv.exe
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE
1988	NETSTAT.EXE

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4400	Quotationv.exe
Token: SeDebugPrivilege	2516	Quotationv.exe
Token: SeDebugPrivilege	1988	NETSTAT.EXE
Token: SeShutdownPrivilege	3128	Explorer.EXE
Token: SeCreatePagefilePrivilege	3128	Explorer.EXE
Token: SeShutdownPrivilege	3128	Explorer.EXE
Token: SeCreatePagefilePrivilege	3128	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 4400 wrote to memory of 2516	4400	Quotationv.exe	94
PID 4400 wrote to memory of 2516	4400	Quotationv.exe	94
PID 4400 wrote to memory of 2516	4400	Quotationv.exe	94
PID 4400 wrote to memory of 2516	4400	Quotationv.exe	94
PID 4400 wrote to memory of 2516	4400	Quotationv.exe	94
PID 4400 wrote to memory of 2516	4400	Quotationv.exe	94
PID 3128 wrote to memory of 1988	3128	Explorer.EXE	95
PID 3128 wrote to memory of 1988	3128	Explorer.EXE	95
PID 3128 wrote to memory of 1988	3128	Explorer.EXE	95
PID 1988 wrote to memory of 2940	1988	NETSTAT.EXE	96
PID 1988 wrote to memory of 2940	1988	NETSTAT.EXE	96
PID 1988 wrote to memory of 2940	1988	NETSTAT.EXE	96
PID 1988 wrote to memory of 2392	1988	NETSTAT.EXE	98
PID 1988 wrote to memory of 2392	1988	NETSTAT.EXE	98
PID 1988 wrote to memory of 2392	1988	NETSTAT.EXE	98
PID 1988 wrote to memory of 1300	1988	NETSTAT.EXE	100
PID 1988 wrote to memory of 1300	1988	NETSTAT.EXE	100
PID 1988 wrote to memory of 1300	1988	NETSTAT.EXE	100
PID 3128 wrote to memory of 1068	3128	Explorer.EXE	101
PID 3128 wrote to memory of 1068	3128	Explorer.EXE	101
PID 3128 wrote to memory of 1068	3128	Explorer.EXE	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Drops file in Program Files directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3128
- C:\Users\Admin\AppData\Local\Temp\Quotationv.exe
  "C:\Users\Admin\AppData\Local\Temp\Quotationv.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4400
- - C:\Users\Admin\AppData\Local\Temp\Quotationv.exe
    "{path}"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2516
- C:\Windows\SysWOW64\NETSTAT.EXE
  "C:\Windows\SysWOW64\NETSTAT.EXE"
  2⤵
  - Adds policy Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Program Files directory
  - Gathers network information
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1988
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Quotationv.exe"
    3⤵
    PID:2940
- - 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:2392
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1300
- C:\Program Files (x86)\Fvfl4w\o0hxmdnnx40dddp.exe
  "C:\Program Files (x86)\Fvfl4w\o0hxmdnnx40dddp.exe"
  2⤵
  - Executes dropped EXE
  PID:1068

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Fvfl4w\o0hxmdnnx40dddp.exe

Filesize
669KB

MD5
52cfc15a97799e70a8b4a39b04bc8e2b

SHA1
2cfa4daab21dd8115167a3ccba0080f5fdad63ff

SHA256
f910b739d3d727fc1f5acde88b0740a575c603dc6c61246156c5debd6bd126bc

SHA512
95b7d0c4942703ebfec9d405bfe08efd1f11c2af3b9f65e05bef5afb3440fabcff5e5733de9bec824331d6b22c26e72419e25ca66a6948c07c0c4d4cc98fcdc3

Download Submit
C:\Program Files (x86)\Fvfl4w\o0hxmdnnx40dddp.exe

Filesize
669KB

MD5
52cfc15a97799e70a8b4a39b04bc8e2b

SHA1
2cfa4daab21dd8115167a3ccba0080f5fdad63ff

SHA256
f910b739d3d727fc1f5acde88b0740a575c603dc6c61246156c5debd6bd126bc

SHA512
95b7d0c4942703ebfec9d405bfe08efd1f11c2af3b9f65e05bef5afb3440fabcff5e5733de9bec824331d6b22c26e72419e25ca66a6948c07c0c4d4cc98fcdc3

Download Submit
C:\Users\Admin\AppData\Local\Temp\DB1

Filesize
46KB

MD5
02d2c46697e3714e49f46b680b9a6b83

SHA1
84f98b56d49f01e9b6b76a4e21accf64fd319140

SHA256
522cad95d3fa6ebb3274709b8d09bbb1ca37389d0a924cd29e934a75aa04c6c9

SHA512
60348a145bfc71b1e07cb35fa79ab5ff472a3d0a557741ea2d39b3772bc395b86e261bd616f65307ae0d997294e49b5548d32f11e86ef3e2704959ca63da8aac

Download Submit
C:\Users\Admin\AppData\Local\Temp\Fvfl4w\o0hxmdnnx40dddp.exe

Filesize
669KB

MD5
52cfc15a97799e70a8b4a39b04bc8e2b

SHA1
2cfa4daab21dd8115167a3ccba0080f5fdad63ff

SHA256
f910b739d3d727fc1f5acde88b0740a575c603dc6c61246156c5debd6bd126bc

SHA512
95b7d0c4942703ebfec9d405bfe08efd1f11c2af3b9f65e05bef5afb3440fabcff5e5733de9bec824331d6b22c26e72419e25ca66a6948c07c0c4d4cc98fcdc3

Download Submit
C:\Users\Admin\AppData\Roaming\8N2QSQ7E\8N2logim.jpeg

Filesize
77KB

MD5
5b7e8cb3da72bdaf45642d1b792e8696

SHA1
a9d210b389198996764f47ec4daefb7914979088

SHA256
376078b4461363e912b19547fa3cffffacc7057b9de63c32e18a0b95b25214eb

SHA512
3a65dbfa77ee7c597f0cde0d0881c416eaaedccedc7bb1f85c36d936ca658e3745bf72149f4202f0ae388d9a79e5a3aef63f91c51110947a63338a2c5281b73e

Download Submit
C:\Users\Admin\AppData\Roaming\8N2QSQ7E\8N2logrf.ini

Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\8N2QSQ7E\8N2logrg.ini

Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\8N2QSQ7E\8N2logri.ini

Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\8N2QSQ7E\8N2logrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
C:\Users\Admin\AppData\Roaming\8N2QSQ7E\8N2logrv.ini

Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/1068-63-0x00000000013F0000-0x0000000001400000-memory.dmp

Filesize
64KB

Download
memory/1068-62-0x00000000738A0000-0x0000000073E51000-memory.dmp

Filesize
5.7MB

Download
memory/1068-64-0x00000000738A0000-0x0000000073E51000-memory.dmp

Filesize
5.7MB

Download
memory/1988-13-0x0000000000A90000-0x0000000000A9B000-memory.dmp

Filesize
44KB

Download
memory/1988-14-0x0000000000A90000-0x0000000000A9B000-memory.dmp

Filesize
44KB

Download
memory/1988-15-0x0000000000770000-0x000000000079E000-memory.dmp

Filesize
184KB

Download
memory/1988-16-0x0000000001190000-0x00000000014DA000-memory.dmp

Filesize
3.3MB

Download
memory/1988-17-0x0000000000770000-0x000000000079E000-memory.dmp

Filesize
184KB

Download
memory/1988-20-0x0000000000FF0000-0x0000000001083000-memory.dmp

Filesize
588KB

Download
memory/2516-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2516-11-0x0000000001230000-0x0000000001244000-memory.dmp

Filesize
80KB

Download
memory/2516-5-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2516-8-0x00000000012D0000-0x000000000161A000-memory.dmp

Filesize
3.3MB

Download
memory/3128-18-0x0000000008400000-0x0000000008528000-memory.dmp

Filesize
1.2MB

Download
memory/3128-12-0x0000000008400000-0x0000000008528000-memory.dmp

Filesize
1.2MB

Download
memory/3128-24-0x0000000008800000-0x0000000008960000-memory.dmp

Filesize
1.4MB

Download
memory/3128-21-0x0000000008800000-0x0000000008960000-memory.dmp

Filesize
1.4MB

Download
memory/3128-22-0x0000000008800000-0x0000000008960000-memory.dmp

Filesize
1.4MB

Download
memory/4400-0-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/4400-7-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/4400-4-0x0000000000F70000-0x0000000000F80000-memory.dmp

Filesize
64KB

Download
memory/4400-3-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download
memory/4400-2-0x0000000000F70000-0x0000000000F80000-memory.dmp

Filesize
64KB

Download
memory/4400-1-0x0000000074F90000-0x0000000075541000-memory.dmp

Filesize
5.7MB

Download