formbook | ac736471989d829de46fd469cc314a609153e7fdbe837ddbe6e19ac4cc407c8f

Analysis

max time kernel
150s
max time network
142s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
28-03-2023 03:32

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General

Target

RFQ270323.exe
Size

1.2MB
MD5

28bad71f1d8eb708ac2e7df6ca5e6154
SHA1

0c49ef832fbc2144edc391346fd37ef28c026fac
SHA256

d9cb6944a11885d5920382271111ef7a8f45b9daf7bf0c60db455d298d24bbeb
SHA512

828ef4077bc52d4a15cd2b5db8768b34d1597e861e148298d988800d72ba7342e3f5142f0a7c1eb82ffd1230fc048acffd3f15be408ce83f9ad67628b2789dd6
SSDEEP

24576:ETbBv5rUVGgovq8fE0WyXjjUBD8SqAOgRF6stH:2B0ovrzYDVqK6stH

Score

10^/10

formbook mg24 persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

mg24

Decoy

jhae3jp.store

generalfirstaidcourse.com

breville-accounting.com

homeinthehamptonsny.com

amphibiamerch.store

lagosstateteacherawards.africa

955.global

longmaosh.com

crblwks.com

horliga.co.uk

classicdancehitzofficial.com

crytodefi.online

huachunjianshe-sh.com

hotel-la-cascada.xyz

avastate.com

cheapweedseeds.com

abgroupthailand.com

context-switching.com

drsolarshine.site

nxeliz.xyz

Signatures

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

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/3576-278-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3576-286-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3864-289-0x0000000001090000-0x00000000010BF000-memory.dmp	formbook
behavioral2/memory/3864-292-0x0000000001090000-0x00000000010BF000-memory.dmp	formbook

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

RFQ270323.exewscript.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	RFQ270323.exe
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	wscript.exe

Executes dropped EXE 3 IoCs

Processes:

dguscfg.pifRegSvcs.exeRegSvcs.exe

pid process

4420 dguscfg.pif
3576 RegSvcs.exe
4076 RegSvcs.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

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

dguscfg.pif

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run	dguscfg.pif
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\winlogon.exe = "C:\\Users\\Admin\\AppData\\Local\\Temp\\pxid\\dguscfg.pif C:\\Users\\Admin\\AppData\\Local\\Temp\\pxid\\pivt.dll"	dguscfg.pif

Suspicious use of SetThreadContext 3 IoCs

Processes:

dguscfg.pifRegSvcs.exesvchost.exe

description	pid	process	target process
PID 4420 set thread context of 3576	4420	dguscfg.pif	RegSvcs.exe
PID 3576 set thread context of 3156	3576	RegSvcs.exe	Explorer.EXE
PID 3864 set thread context of 3156	3864	svchost.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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

svchost.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

dguscfg.pifRegSvcs.exesvchost.exe

pid	process
4420	dguscfg.pif
4420	dguscfg.pif
4420	dguscfg.pif
4420	dguscfg.pif
4420	dguscfg.pif
4420	dguscfg.pif
4420	dguscfg.pif
4420	dguscfg.pif
4420	dguscfg.pif
4420	dguscfg.pif
4420	dguscfg.pif
4420	dguscfg.pif
3576	RegSvcs.exe
3576	RegSvcs.exe
3576	RegSvcs.exe
3576	RegSvcs.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3156 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

RegSvcs.exesvchost.exe

pid process

3576 RegSvcs.exe
3576 RegSvcs.exe
3576 RegSvcs.exe
3864 svchost.exe
3864 svchost.exe
3864 svchost.exe
3864 svchost.exe

pid	process
3156	Explorer.EXE

pid	process
3576	RegSvcs.exe
3576	RegSvcs.exe
3576	RegSvcs.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe
3864	svchost.exe

Suspicious use of AdjustPrivilegeToken 10 IoCs

Processes:

RegSvcs.exeExplorer.EXEsvchost.exe

description	pid	process
Token: SeDebugPrivilege	3576	RegSvcs.exe
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE
Token: SeDebugPrivilege	3864	svchost.exe
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE
Token: SeShutdownPrivilege	3156	Explorer.EXE
Token: SeCreatePagefilePrivilege	3156	Explorer.EXE

Suspicious use of WriteProcessMemory 24 IoCs

Processes:

RFQ270323.exewscript.exedguscfg.pifExplorer.EXEsvchost.exe

description	pid	process	target process
PID 3336 wrote to memory of 4388	3336	RFQ270323.exe	wscript.exe
PID 3336 wrote to memory of 4388	3336	RFQ270323.exe	wscript.exe
PID 3336 wrote to memory of 4388	3336	RFQ270323.exe	wscript.exe
PID 4388 wrote to memory of 4420	4388	wscript.exe	dguscfg.pif
PID 4388 wrote to memory of 4420	4388	wscript.exe	dguscfg.pif
PID 4388 wrote to memory of 4420	4388	wscript.exe	dguscfg.pif
PID 4420 wrote to memory of 4076	4420	dguscfg.pif	RegSvcs.exe
PID 4420 wrote to memory of 4076	4420	dguscfg.pif	RegSvcs.exe
PID 4420 wrote to memory of 4076	4420	dguscfg.pif	RegSvcs.exe
PID 4420 wrote to memory of 3576	4420	dguscfg.pif	RegSvcs.exe
PID 4420 wrote to memory of 3576	4420	dguscfg.pif	RegSvcs.exe
PID 4420 wrote to memory of 3576	4420	dguscfg.pif	RegSvcs.exe
PID 4420 wrote to memory of 3576	4420	dguscfg.pif	RegSvcs.exe
PID 4420 wrote to memory of 3576	4420	dguscfg.pif	RegSvcs.exe
PID 4420 wrote to memory of 3576	4420	dguscfg.pif	RegSvcs.exe
PID 3156 wrote to memory of 3864	3156	Explorer.EXE	svchost.exe
PID 3156 wrote to memory of 3864	3156	Explorer.EXE	svchost.exe
PID 3156 wrote to memory of 3864	3156	Explorer.EXE	svchost.exe
PID 3864 wrote to memory of 1000	3864	svchost.exe	cmd.exe
PID 3864 wrote to memory of 1000	3864	svchost.exe	cmd.exe
PID 3864 wrote to memory of 1000	3864	svchost.exe	cmd.exe
PID 3864 wrote to memory of 3860	3864	svchost.exe	Firefox.exe
PID 3864 wrote to memory of 3860	3864	svchost.exe	Firefox.exe
PID 3864 wrote to memory of 3860	3864	svchost.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3156

C:\Users\Admin\AppData\Local\Temp\RFQ270323.exe
"C:\Users\Admin\AppData\Local\Temp\RFQ270323.exe"
2⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3336

C:\Windows\SysWOW64\wscript.exe
"C:\Windows\System32\wscript.exe" Update-nm.f.vbe
3⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4388

C:\Users\Admin\AppData\Local\Temp\pxid\dguscfg.pif
"C:\Users\Admin\AppData\Local\Temp\pxid\dguscfg.pif" pivt.dll
4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:4420

C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
"C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
5⤵
- Executes dropped EXE
PID:4076

C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
"C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe"
5⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:3576

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\SysWOW64\svchost.exe"
2⤵
- Suspicious use of SetThreadContext
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3864

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:1000

C:\Program Files\Mozilla Firefox\Firefox.exe
"C:\Program Files\Mozilla Firefox\Firefox.exe"
3⤵
PID:3860

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

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\RegSvcs.exe
Filesize
44KB

MD5
9d352bc46709f0cb5ec974633a0c3c94

SHA1
1969771b2f022f9a86d77ac4d4d239becdf08d07

SHA256
2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390

SHA512
13c714244ec56beeb202279e4109d59c2a43c3cf29f90a374a751c04fd472b45228ca5a0178f41109ed863dbd34e0879e4a21f5e38ae3d89559c57e6be990a9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
Filesize
44KB

MD5
9d352bc46709f0cb5ec974633a0c3c94

SHA1
1969771b2f022f9a86d77ac4d4d239becdf08d07

SHA256
2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390

SHA512
13c714244ec56beeb202279e4109d59c2a43c3cf29f90a374a751c04fd472b45228ca5a0178f41109ed863dbd34e0879e4a21f5e38ae3d89559c57e6be990a9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\RegSvcs.exe
Filesize
44KB

MD5
9d352bc46709f0cb5ec974633a0c3c94

SHA1
1969771b2f022f9a86d77ac4d4d239becdf08d07

SHA256
2c1eeb7097023c784c2bd040a2005a5070ed6f3a4abf13929377a9e39fab1390

SHA512
13c714244ec56beeb202279e4109d59c2a43c3cf29f90a374a751c04fd472b45228ca5a0178f41109ed863dbd34e0879e4a21f5e38ae3d89559c57e6be990a9b

Download Submit
C:\Users\Admin\AppData\Local\Temp\pxid\cuxcdxld.cwq
Filesize
352KB

MD5
1ac57c60a1ffa3577588cf17f1a88806

SHA1
aa8553cb4a657ec3f6df9dbef6999eee7aac3388

SHA256
f4bbc38c2f64979a90fa03b4c7a48c2a6b1d4ba4a83bd2767f01046b674f3a1e

SHA512
b449142c92ada617853ddc2e84b1d6d62f2aa90f7bf6189abc091c677742b349aca6f9da155def4e3f916387c18722a5f11629bb728153d7782d46c8bb826c45

Download Submit
C:\Users\Admin\AppData\Local\Temp\pxid\dguscfg.pif
Filesize
1.1MB

MD5
379723f7b1c99115e891e469bd298ed0

SHA1
982239a75da8a2202244a5e0a21acb752373ff73

SHA256
d556eea4612381865a73663068d0193ae7a5abd990bdd3beb30a83d3a6f70846

SHA512
210d50b2d8cb21356c2d88f5e8bb72ede7b7ae90fd18285c531741cbedd6a177ba785c76a8d3c11c4ae014dd76ce986461b022291785bc1cab9663961c9f35c4

Download Submit
C:\Users\Admin\AppData\Local\Temp\pxid\dguscfg.pif
Filesize
1.1MB

MD5
379723f7b1c99115e891e469bd298ed0

SHA1
982239a75da8a2202244a5e0a21acb752373ff73

SHA256
d556eea4612381865a73663068d0193ae7a5abd990bdd3beb30a83d3a6f70846

SHA512
210d50b2d8cb21356c2d88f5e8bb72ede7b7ae90fd18285c531741cbedd6a177ba785c76a8d3c11c4ae014dd76ce986461b022291785bc1cab9663961c9f35c4

Download Submit
C:\Users\Admin\AppData\Local\Temp\pxid\hwli.icm
Filesize
44KB

MD5
61f0aa8d18e4d59b95ea9bcc5b2c7b9e

SHA1
458a01a1becbffa7d8f3717b04e5e438459ebfd0

SHA256
e6c5127515ac8a943fdb9eb933b1d781b676494113a99091dab80244c61382d6

SHA512
e82300a6a146f58c869d5c2c84d3a381ce2294b4a8044245970981c01ea154888f314094cb8213fbc29931fab066753ae74658dba56e6befdeb5faebd5fde736

Download Submit
C:\Users\Admin\AppData\Local\Temp\pxid\pivt.dll
Filesize
113.0MB

MD5
4128d973fcb7161ee72c76bebdc28f5e

SHA1
cea031e418bf52a84f528080a88cc79f297143d4

SHA256
5685a5618c9e2df9890255195245be45dd2dfc55fa6edcf309b3e26ea49f5b07

SHA512
e76d76683b509de617bebb3b13e041e9a886351ee2356243672656d0c2d5b7bc450770baaf600716b09024543e34f808bd5382cacb7bcd98ad7d0b374b43888d

Download Submit
C:\Users\Admin\AppData\Local\temp\pxid\Update-nm.f.vbe
Filesize
85KB

MD5
d2468a064a073a6501c47a294e0cca5d

SHA1
aaff3bcdb9a61839e5c05e77d75cef16d4aeb030

SHA256
4846793cff1a367f4ca268763ecb6af6df1f5729649e9221906f019cc67a2b4a

SHA512
7e9093cb346c643bedba4b9318e2a7674474230722d98ab787e477416f288c1ada3d4c201e9659be872e67a75044b96d1a8a5a3478665467f2779e62462d0124

Download Submit
C:\Users\Admin\AppData\Roaming\97PQQ6DU\97Plogim.jpeg
Filesize
79KB

MD5
5bdfad32bbf6278e7ffaeb445a67b828

SHA1
2d774dd57755d5aeb9d02deacab932e73e7775ab

SHA256
4ad15cc35b5e270b933d9f611a3187103225fc1573134305a6a1d970d3c69041

SHA512
ec45f7338c0eb7c97ade71eb878fd5fc5cc04a12ec6294dbd4c5d13459372cb1b25b4217e7753bff3abaf2ca2cd9b3073aaa68079ef5befd3fe57e4f6ec7b608

Download Submit
C:\Users\Admin\AppData\Roaming\97PQQ6DU\97Plogrf.ini
Filesize
40B

MD5
2f245469795b865bdd1b956c23d7893d

SHA1
6ad80b974d3808f5a20ea1e766c7d2f88b9e5895

SHA256
1662d01a2d47b875a34fc7a8cd92e78cb2ba7f34023c7fd2639cbb10b8d94361

SHA512
909f189846a5d2db208a5eb2e7cb3042c0f164caf437e2b1b6de608c0a70e4f3510b81b85753dbeec1e211e6a83e6ea8c96aff896e9b6e8ed42014473a54dc4f

Download Submit
C:\Users\Admin\AppData\Roaming\97PQQ6DU\97Plogrg.ini
Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\97PQQ6DU\97Plogri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\97PQQ6DU\97Plogrv.ini
Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/3156-309-0x0000000008930000-0x0000000008A6E000-memory.dmp

Filesize
1.2MB

Download
memory/3156-284-0x0000000002E00000-0x0000000002EC2000-memory.dmp

Filesize
776KB

Download
memory/3156-313-0x0000000008930000-0x0000000008A6E000-memory.dmp

Filesize
1.2MB

Download
memory/3156-310-0x0000000008930000-0x0000000008A6E000-memory.dmp

Filesize
1.2MB

Download
memory/3576-286-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3576-283-0x0000000001390000-0x00000000013A5000-memory.dmp

Filesize
84KB

Download
memory/3576-281-0x00000000013B0000-0x00000000016FA000-memory.dmp

Filesize
3.3MB

Download
memory/3576-278-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3864-288-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

Download
memory/3864-308-0x0000000001A00000-0x0000000001A94000-memory.dmp

Filesize
592KB

Download
memory/3864-292-0x0000000001090000-0x00000000010BF000-memory.dmp

Filesize
188KB

Download
memory/3864-289-0x0000000001090000-0x00000000010BF000-memory.dmp

Filesize
188KB

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memory/3864-285-0x0000000000500000-0x000000000050E000-memory.dmp

Filesize
56KB

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memory/3864-290-0x0000000001B00000-0x0000000001E4A000-memory.dmp

Filesize
3.3MB

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