formbook | 13af3ad92eb86c2c95c816ac526b97c78e0aaed46535c61bf363d768bb2cb0c9

Analysis

max time kernel
147s
max time network
125s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
21/11/2024, 20:05

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General

Target
Fattura_855.pdf.exe
Size 240KB
Sample241121-yvb7da1jdp
SHA256 df52a26061f50bed16f94038cfedb42e1b492b9ce865daabd7ce15db4db9b8a3
MD5 068b6fd352736535c7d967673914c66a
SHA1 ae5b7ac0e73123f5b2b31e9a3b1061c9985e70bf
SHA512 0b3eff80a6cba89895c554206bb64246bc090a04015eae579e9624f71a72e750fa0d9c352f1922731698223444b1b583c3aa075fc67fb00c32f6fe19b8bb585f
SSDEEP 6144:HNeZm//7la+u61CkduDVUWurQZt1czVpwS:HNl/zlnNCyAUW1KgS
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

formbook m0r9 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

Campaign

m0r9

Decoy

neekoluldao.com
pandolam.com
homestore.website
inthemoart.com
plubmingcny.com
tsandjsdjproductions.com
bangkok-bars.com
theroganexperience.com
cisneros.media
cxaerfa.xyz
dalafea.online
eppsallen.com
kksm1.com
navega.site
coloradonews.info
rnhues3j.xyz
languageslibrary.com
metapharmacyphuket.net
invisiblelady.com
suculentaycactaceo3d.com
pupilo.xyz
daccake.com
lastgayconservative.com
enspireideas.com
marysaysmeh.com
socialconsultant.xyz
evansapartmentsinlagrangega.com
drillernewsupdate.com
myvegan.restaurant
voyagewithscottmonty.com
openproductize.club
cinemagicmovie.com
nftunick.com
velabonita.com
email-testingmavens.net
xiaoshuhao.com
cryptosong.xyz
coloradocompetition.com
composite.international
carrinhourbano.com
answer2017.com
xucug.com
toursmargaretriver.global
amicuscare.life
mpqbridalshowcase.com
loversondisplay.com
julie-agency.com
icloud-xn1.site
yofing.site
biygi.com
midiaestetic.com
mwykmm.icu
digitalprojects.site
dagreats.com
myhapocun.xyz
beritasejagat.com
37c24a3158dc6f1a.com
croninstarlight.com
wu6bqyjf7tvzs.xyz
catjo6.mobi
paarl.xyz
platinumoffres.store
letreensemble.com
shaatshop.com
greensborotattoo.com

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral7/memory/2536-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral7/memory/2536-18-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral7/memory/2536-21-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral7/memory/2296-28-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
2084	gocbcx.exe
2536	gocbcx.exe

Loads dropped DLL 3 IoCs

pid	Process
2348	Fattura_855.pdf.exe
2348	Fattura_855.pdf.exe
2084	gocbcx.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 2084 set thread context of 2536	2084	gocbcx.exe	31
PID 2536 set thread context of 1148	2536	gocbcx.exe	20
PID 2536 set thread context of 1148	2536	gocbcx.exe	20
PID 2296 set thread context of 1148	2296	help.exe	20

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Fattura_855.pdf.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	gocbcx.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	help.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2536	gocbcx.exe
2536	gocbcx.exe
2536	gocbcx.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe
2296	help.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2536	gocbcx.exe
2536	gocbcx.exe
2536	gocbcx.exe
2536	gocbcx.exe
2296	help.exe
2296	help.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2536	gocbcx.exe
Token: SeDebugPrivilege	2296	help.exe

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2084	2348	Fattura_855.pdf.exe	30
PID 2348 wrote to memory of 2084	2348	Fattura_855.pdf.exe	30
PID 2348 wrote to memory of 2084	2348	Fattura_855.pdf.exe	30
PID 2348 wrote to memory of 2084	2348	Fattura_855.pdf.exe	30
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	31
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	31
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	31
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	31
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	31
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	31
PID 2084 wrote to memory of 2536	2084	gocbcx.exe	31
PID 1148 wrote to memory of 2296	1148	Explorer.EXE	33
PID 1148 wrote to memory of 2296	1148	Explorer.EXE	33
PID 1148 wrote to memory of 2296	1148	Explorer.EXE	33
PID 1148 wrote to memory of 2296	1148	Explorer.EXE	33
PID 2296 wrote to memory of 2980	2296	help.exe	35
PID 2296 wrote to memory of 2980	2296	help.exe	35
PID 2296 wrote to memory of 2980	2296	help.exe	35
PID 2296 wrote to memory of 2980	2296	help.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1148
- C:\Users\Admin\AppData\Local\Temp\Fattura_855.pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Fattura_855.pdf.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2348
- - C:\Users\Admin\AppData\Local\Temp\gocbcx.exe
    C:\Users\Admin\AppData\Local\Temp\gocbcx.exe C:\Users\Admin\AppData\Local\Temp\rnukeqm
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2084
  - - C:\Users\Admin\AppData\Local\Temp\gocbcx.exe
      C:\Users\Admin\AppData\Local\Temp\gocbcx.exe C:\Users\Admin\AppData\Local\Temp\rnukeqm
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2536
- C:\Windows\SysWOW64\autochk.exe
  "C:\Windows\SysWOW64\autochk.exe"
  2⤵
  PID:1972
- C:\Windows\SysWOW64\help.exe
  "C:\Windows\SysWOW64\help.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2296
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\gocbcx.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2980

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

gocbcx.exe

Path C:\Users\Admin\AppData\Local\Temp\gocbcx.exe
Size 64KB
SHA256 ffef20b2c9b8d9cdd4f471718ef688a8bd4834b6481978574b877ab14a91228d
MD5 6c310e309e2ddfe8ae53e95c525c9e52
SHA1 694861bf8fbddafc5673853c8f7c910a2b60a1b7
SHA512 8030a4b7d8d225699d4c9d71cf015dbb90895266e9006c5fee1ba9ce56ac871f1f9477ee4ccf6c62109ef23f0321d9590a3b286156d5b57e30bbe2f9d302a931
SSDEEP 768:klHfloloDRGOt3qLVEw2b61rKnuvQ7n0jnbawiBDNKtc8WhsWjcdhDjC+9Vv:CB1qL6zbtwQ7qegc8EsWjcdhDz
MD5 SHA1 SHA512 SSDEEP

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ncssrlmzyd

Path C:\Users\Admin\AppData\Local\Temp\ncssrlmzyd
Size 184KB
SHA256 a3439fba9220dbfe1fb05f3dfa24aab3e7f72071ff1f16bae20fd58c227e4b7a
MD5 02475297a79138c050381b19f13cbb88
SHA1 efeb9032605484fdea6478b224afe59af46f29a3
SHA512 35e9e844e33c1ac1ad3ce9e035ba2ff6302e84941bcd300011c758fa6eb917292a2db480a3d1592e6a275b84621708b08109579599781c2fd28fdba8f7e25d55
SSDEEP 3072:CjBoXErZjsNDQk1rLnoVvv7MCtUglwQs3Fx6HQfSYdLKaSs5shgsSmODc:Co0rZc0kFLoVv/tUSfGxWmEHs5grSPc
MD5 SHA1 SHA512 SSDEEP

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rnukeqm

Path C:\Users\Admin\AppData\Local\Temp\rnukeqm
Size 5KB
SHA256 83bd692b6115ceeb84745dac471dc333377ce29178894d0493e0d2a6acd975b4
MD5 8d73805cc88e7c5fb975ea51d44509c0
SHA1 7b3615aeb8d8a6a049dd59d2c6883c2d60c689b8
SHA512 e50598247e565bb3d509189c107f288ee07d163913d38a2e9ebf2f5bdaed969c49c027c96e0afab8a00cefc2c4cf4e712d99b853a2b3af36694ff1784b75dff3
SSDEEP 96:oPC5sRCLiM5HtaKpPzz0+Not69qbnd7MzVyiJ2VwQtrqHWTnyzC9ecj:oPC5sR7Mtt1pPzA+NotWz827UqmnyzCP
MD5 SHA1 SHA512 SSDEEP

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memory/1148-19-0x0000000004470000-0x0000000004571000-memory.dmp

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memory/1148-22-0x0000000004470000-0x0000000004571000-memory.dmp

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memory/1148-23-0x00000000051A0000-0x000000000527E000-memory.dmp

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memory/1148-29-0x00000000051A0000-0x000000000527E000-memory.dmp

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memory/2084-11-0x0000000000220000-0x0000000000222000-memory.dmp

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memory/2296-27-0x0000000000BA0000-0x0000000000BA6000-memory.dmp

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memory/2296-26-0x0000000000BA0000-0x0000000000BA6000-memory.dmp

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memory/2296-28-0x0000000000080000-0x00000000000AF000-memory.dmp

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memory/2536-15-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2536-18-0x0000000000400000-0x000000000042F000-memory.dmp

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memory/2536-21-0x0000000000400000-0x000000000042F000-memory.dmp

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