formbook | ece8d55b66fdd470a1037290b30a2e6e66d0ff38fa366ec37a2b0a330364093e

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
08-05-2023 06:35

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General

Target

invoice.exe
Size

753KB
MD5

4de9d309e114114fa821c9b7bb72d0d4
SHA1

010b0e52bf6fc756f22b04c6dea24b0db9b31ff3
SHA256

ece8d55b66fdd470a1037290b30a2e6e66d0ff38fa366ec37a2b0a330364093e
SHA512

a8e52c3815237474e7832e4478e14aeb386cd1c18e05938b580958e8814b3a0f62967927cb260f386e25473c4ebd4fdc999cf04a6dee123eff139b855428263d
SSDEEP

12288:336M4DvcLt3zO0JSeo2113s9tr4CNNF06+DkJV5c+uh09HgCTrHBz:6M4qqapo213s5NNFu4JV52KH/r

Score

10^/10

formbook m82 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

m82

Decoy

jamesdevereux.com

artificialturfminneapolis.com

hongmeiyan.com

lojaderoupasbr.com

yit.africa

austinrelocationexpert.com

saiva.page

exitsategy.com

chochonux.com

klosterbraeu-unterliezheim.com

byseymanur.com

sblwarwickshire.co.uk

brazimaid.com

ciogame.com

bronzesailing.com

dwkapl.xyz

022dyd.com

compassandpathwriting.com

alphabet1x.com

selfcleaninghairbrush.co.uk

Signatures

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

Formbook payload 5 IoCs

rat

resource	yara_rule
behavioral2/memory/1048-147-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1048-191-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/1048-195-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3868-198-0x0000000000C40000-0x0000000000C6F000-memory.dmp	formbook
behavioral2/memory/3868-200-0x0000000000C40000-0x0000000000C6F000-memory.dmp	formbook

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1529757233-3489015626-3409890339-1000\Control Panel\International\Geo\Nation	invoice.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 3576 set thread context of 1048	3576	invoice.exe	98
PID 1048 set thread context of 3112	1048	RegSvcs.exe	21
PID 1048 set thread context of 3112	1048	RegSvcs.exe	21
PID 3868 set thread context of 3112	3868	wlanext.exe	21

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4032	schtasks.exe

Suspicious behavior: EnumeratesProcesses 52 IoCs

pid	Process
3576	invoice.exe
3576	invoice.exe
3576	invoice.exe
3576	invoice.exe
3576	invoice.exe
3576	invoice.exe
3576	invoice.exe
3576	invoice.exe
4268	powershell.exe
1048	RegSvcs.exe
1048	RegSvcs.exe
1048	RegSvcs.exe
1048	RegSvcs.exe
4268	powershell.exe
1048	RegSvcs.exe
1048	RegSvcs.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe
3868	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
3112	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
1048	RegSvcs.exe
1048	RegSvcs.exe
1048	RegSvcs.exe
1048	RegSvcs.exe
3868	wlanext.exe
3868	wlanext.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3576	invoice.exe
Token: SeDebugPrivilege	4268	powershell.exe
Token: SeDebugPrivilege	1048	RegSvcs.exe
Token: SeShutdownPrivilege	3112	Explorer.EXE
Token: SeCreatePagefilePrivilege	3112	Explorer.EXE
Token: SeDebugPrivilege	3868	wlanext.exe

Suspicious use of WriteProcessMemory 27 IoCs

description	pid	Process	procid_target
PID 3576 wrote to memory of 4268	3576	invoice.exe	91
PID 3576 wrote to memory of 4268	3576	invoice.exe	91
PID 3576 wrote to memory of 4268	3576	invoice.exe	91
PID 3576 wrote to memory of 4032	3576	invoice.exe	93
PID 3576 wrote to memory of 4032	3576	invoice.exe	93
PID 3576 wrote to memory of 4032	3576	invoice.exe	93
PID 3576 wrote to memory of 1344	3576	invoice.exe	95
PID 3576 wrote to memory of 1344	3576	invoice.exe	95
PID 3576 wrote to memory of 1344	3576	invoice.exe	95
PID 3576 wrote to memory of 1296	3576	invoice.exe	96
PID 3576 wrote to memory of 1296	3576	invoice.exe	96
PID 3576 wrote to memory of 1296	3576	invoice.exe	96
PID 3576 wrote to memory of 3080	3576	invoice.exe	97
PID 3576 wrote to memory of 3080	3576	invoice.exe	97
PID 3576 wrote to memory of 3080	3576	invoice.exe	97
PID 3576 wrote to memory of 1048	3576	invoice.exe	98
PID 3576 wrote to memory of 1048	3576	invoice.exe	98
PID 3576 wrote to memory of 1048	3576	invoice.exe	98
PID 3576 wrote to memory of 1048	3576	invoice.exe	98
PID 3576 wrote to memory of 1048	3576	invoice.exe	98
PID 3576 wrote to memory of 1048	3576	invoice.exe	98
PID 3112 wrote to memory of 3868	3112	Explorer.EXE	100
PID 3112 wrote to memory of 3868	3112	Explorer.EXE	100
PID 3112 wrote to memory of 3868	3112	Explorer.EXE	100
PID 3868 wrote to memory of 5088	3868	wlanext.exe	101
PID 3868 wrote to memory of 5088	3868	wlanext.exe	101
PID 3868 wrote to memory of 5088	3868	wlanext.exe	101

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3112
- C:\Users\Admin\AppData\Local\Temp\invoice.exe
  "C:\Users\Admin\AppData\Local\Temp\invoice.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3576
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NipStPDCKYxH.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4268
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NipStPDCKYxH" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2839.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4032
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:1344
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:1296
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:3080
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1048
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1760
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3868
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    PID:5088

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f5mtzqsf.fkw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp2839.tmp

Filesize
1KB

MD5
218bde5942d58fdaba33a084e2d320f4

SHA1
104ddd98fc148f5944434849ad0329b97eb8c3f6

SHA256
e203255b6c7a85c169a4bfbc6685ae00a948813f991f6529921833bd8048bac8

SHA512
65083198553f70d0b917297b2eb5dae4ad7fb5f0cab7c732e6a017ac3271715eed23218aa13de84879a88097f6aab39b3cb18368d68e01246fb8c06812295aae

Download Submit
memory/1048-192-0x0000000001270000-0x0000000001285000-memory.dmp

Filesize
84KB

Download
memory/1048-195-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1048-166-0x0000000000F10000-0x0000000000F25000-memory.dmp

Filesize
84KB

Download
memory/1048-165-0x00000000013B0000-0x00000000016FA000-memory.dmp

Filesize
3.3MB

Download
memory/1048-191-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1048-147-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3112-203-0x0000000008630000-0x0000000008730000-memory.dmp

Filesize
1024KB

Download
memory/3112-167-0x0000000008480000-0x000000000862B000-memory.dmp

Filesize
1.7MB

Download
memory/3112-206-0x0000000008630000-0x0000000008730000-memory.dmp

Filesize
1024KB

Download
memory/3112-193-0x0000000002C30000-0x0000000002D16000-memory.dmp

Filesize
920KB

Download
memory/3112-204-0x0000000008630000-0x0000000008730000-memory.dmp

Filesize
1024KB

Download
memory/3576-133-0x0000000000610000-0x00000000006D2000-memory.dmp

Filesize
776KB

Download
memory/3576-139-0x0000000008530000-0x00000000085CC000-memory.dmp

Filesize
624KB

Download
memory/3576-134-0x0000000005770000-0x0000000005D14000-memory.dmp

Filesize
5.6MB

Download
memory/3576-138-0x0000000005260000-0x0000000005270000-memory.dmp

Filesize
64KB

Download
memory/3576-135-0x0000000005080000-0x0000000005112000-memory.dmp

Filesize
584KB

Download
memory/3576-137-0x0000000005260000-0x0000000005270000-memory.dmp

Filesize
64KB

Download
memory/3576-136-0x0000000005170000-0x000000000517A000-memory.dmp

Filesize
40KB

Download
memory/3868-198-0x0000000000C40000-0x0000000000C6F000-memory.dmp

Filesize
188KB

Download
memory/3868-197-0x00000000006D0000-0x00000000006E7000-memory.dmp

Filesize
92KB

Download
memory/3868-194-0x00000000006D0000-0x00000000006E7000-memory.dmp

Filesize
92KB

Download
memory/3868-199-0x00000000013A0000-0x00000000016EA000-memory.dmp

Filesize
3.3MB

Download
memory/3868-200-0x0000000000C40000-0x0000000000C6F000-memory.dmp

Filesize
188KB

Download
memory/3868-202-0x0000000001180000-0x0000000001214000-memory.dmp

Filesize
592KB

Download
memory/4268-149-0x00000000058B0000-0x00000000058D2000-memory.dmp

Filesize
136KB

Download
memory/4268-183-0x000000007F1D0000-0x000000007F1E0000-memory.dmp

Filesize
64KB

Download
memory/4268-184-0x00000000073B0000-0x00000000073BA000-memory.dmp

Filesize
40KB

Download
memory/4268-185-0x00000000075C0000-0x0000000007656000-memory.dmp

Filesize
600KB

Download
memory/4268-186-0x0000000007570000-0x000000000757E000-memory.dmp

Filesize
56KB

Download
memory/4268-187-0x0000000007680000-0x000000000769A000-memory.dmp

Filesize
104KB

Download
memory/4268-188-0x0000000007660000-0x0000000007668000-memory.dmp

Filesize
32KB

Download
memory/4268-182-0x0000000007340000-0x000000000735A000-memory.dmp

Filesize
104KB

Download
memory/4268-181-0x0000000007980000-0x0000000007FFA000-memory.dmp

Filesize
6.5MB

Download
memory/4268-180-0x00000000065F0000-0x000000000660E000-memory.dmp

Filesize
120KB

Download
memory/4268-170-0x0000000071110000-0x000000007115C000-memory.dmp

Filesize
304KB

Download
memory/4268-169-0x0000000006630000-0x0000000006662000-memory.dmp

Filesize
200KB

Download
memory/4268-168-0x0000000002760000-0x0000000002770000-memory.dmp

Filesize
64KB

Download
memory/4268-164-0x0000000006040000-0x000000000605E000-memory.dmp

Filesize
120KB

Download
memory/4268-162-0x0000000005B30000-0x0000000005B96000-memory.dmp

Filesize
408KB

Download
memory/4268-152-0x0000000005950000-0x00000000059B6000-memory.dmp

Filesize
408KB

Download
memory/4268-151-0x0000000002760000-0x0000000002770000-memory.dmp

Filesize
64KB

Download
memory/4268-150-0x0000000002760000-0x0000000002770000-memory.dmp

Filesize
64KB

Download
memory/4268-146-0x00000000051D0000-0x00000000057F8000-memory.dmp

Filesize
6.2MB

Download
memory/4268-144-0x0000000002770000-0x00000000027A6000-memory.dmp

Filesize
216KB

Download