formbook | 448d2ecff6d2b8cf7a5da39c4be57e4bb991fcf35a1a6bfbe24f0430684fc59c

Analysis

max time kernel
150s
max time network
132s
platform
windows7_x64
resource
win7v20201028
submitted
10/12/2020, 11:11

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General

Target
payment document.exe
Size 95KB
Sample201210-cctwxb9ldx
SHA256 448d2ecff6d2b8cf7a5da39c4be57e4bb991fcf35a1a6bfbe24f0430684fc59c
MD5 50f9cf33552796c0935796d448df1ca3
SHA1 add69b499988d6a56b6a988387bdb6ae017dd1e2
SHA512 13c29f59336caba962af5781882bbc69da7f769670974af2f1a5ef929a8410f40e5901add5bbdfe896eedf26f0d73fd36e91e8af5521aae0b2d464d159727803
MD5 SHA1 SHA512

Score

10^/10

formbook evasion rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

http://www.couponquote.com/rbe/

Decoy

yourhappywanderer.com
nflike.com
julielearnskorean.com
legendarywatersports.com
replicadrip.com
firefinchlimited.com
onlycookiejars.com
bluedotdelivery.com
valconelectronics.com
knitswhereitsat.com
clint-robert-murphy.com
expoonline.online
hcjeong.com
solbabiesco.com
americaroses.com
morcola.com
bjhrgxkj.com
sibingkeji.com
trufflesales.com
lionvilleshelves.com
tplnkw.net
yelllouder2020.com
justlifeservices.com
gsmserviciosstore.com
ndmh.net
dawnoftheshred.com
4602wbutler.com
u-hyve.com
strataerials.com
mspguildllc.com
happyholidaysfromthemartins.com
pinehollowcottage.com
suruculuk.net
katieschell.com
mimotza.com
cpeivmc.com
faisal-alshaikh.com
accesspubhealth.com
fashionedway.com
masihsehat.com
psychshops.com
scorpeimports.com
pokerperth.com
onlinecollegedegree-for-you.com
markedbymiaa.com
karinamejia.com
iscoalarconsuarez.com
ourkpop.net
theeverydayfighter.com
cdzqmailsquire.space
ycspsh.com
hasslecost.com
laurafazz.com
sortashort.com
elevatedhomedesign.com
pisanosportpraxis.com
hello-shay.com
ghienmall.com
cnlegoo.com
51dxym.com
ecocivi.com
rbullls.com
diplomyrussianys.com
baxcol.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Modifies Windows Defender Real-time Protection settings 3 TTPs
evasion trojan

Modify Registry
T1112

Modify Existing Service
T1031

Disabling Security Tools
T1089
Windows security bypass 2 TTPs
evasion trojan

Disabling Security Tools
T1089

Modify Registry
T1112

Formbook Payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/1760-14-0x000000000041EAF0-mapping.dmp	formbook
behavioral1/memory/1760-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/812-47-0x0000000000000000-mapping.dmp	formbook

Deletes itself 1 IoCs

pid	Process
292	cmd.exe

Windows security modification 2 TTPs 8 IoCs

evasion trojan

Disabling Security Tools

T1089

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features	payment document.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Features\TamperProtection = "0"	payment document.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths	payment document.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions	payment document.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Exclusions\Paths\C:\Users\Admin\AppData\Local\Temp\payment document.exe = "0"	payment document.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Real-Time Protection	payment document.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Real-Time Protection\DisableRealtimeMonitoring = "1"	payment document.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows Defender\Spynet\SubmitSamplesConsent = "0"	payment document.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs

Web Service
T1102

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 740 set thread context of 1760	740	payment document.exe	34
PID 1760 set thread context of 1256	1760	payment document.exe	11
PID 812 set thread context of 1256	812	cmmon32.exe	11

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
1440	timeout.exe

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
520	powershell.exe
520	powershell.exe
1760	payment document.exe
1760	payment document.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe
812	cmmon32.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1760	payment document.exe
1760	payment document.exe
1760	payment document.exe
812	cmmon32.exe
812	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	740	payment document.exe
Token: SeDebugPrivilege	520	powershell.exe
Token: SeDebugPrivilege	1760	payment document.exe
Token: SeDebugPrivilege	812	cmmon32.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE
1256	Explorer.EXE

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 740 wrote to memory of 2016	740	payment document.exe	26
PID 740 wrote to memory of 2016	740	payment document.exe	26
PID 740 wrote to memory of 2016	740	payment document.exe	26
PID 740 wrote to memory of 2016	740	payment document.exe	26
PID 2016 wrote to memory of 1440	2016	cmd.exe	28
PID 2016 wrote to memory of 1440	2016	cmd.exe	28
PID 2016 wrote to memory of 1440	2016	cmd.exe	28
PID 2016 wrote to memory of 1440	2016	cmd.exe	28
PID 740 wrote to memory of 520	740	payment document.exe	32
PID 740 wrote to memory of 520	740	payment document.exe	32
PID 740 wrote to memory of 520	740	payment document.exe	32
PID 740 wrote to memory of 520	740	payment document.exe	32
PID 740 wrote to memory of 1760	740	payment document.exe	34
PID 740 wrote to memory of 1760	740	payment document.exe	34
PID 740 wrote to memory of 1760	740	payment document.exe	34
PID 740 wrote to memory of 1760	740	payment document.exe	34
PID 740 wrote to memory of 1760	740	payment document.exe	34
PID 740 wrote to memory of 1760	740	payment document.exe	34
PID 740 wrote to memory of 1760	740	payment document.exe	34
PID 740 wrote to memory of 1760	740	payment document.exe	34
PID 1256 wrote to memory of 812	1256	Explorer.EXE	35
PID 1256 wrote to memory of 812	1256	Explorer.EXE	35
PID 1256 wrote to memory of 812	1256	Explorer.EXE	35
PID 1256 wrote to memory of 812	1256	Explorer.EXE	35
PID 812 wrote to memory of 292	812	cmmon32.exe	36
PID 812 wrote to memory of 292	812	cmmon32.exe	36
PID 812 wrote to memory of 292	812	cmmon32.exe	36
PID 812 wrote to memory of 292	812	cmmon32.exe	36

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1256
- C:\Users\Admin\AppData\Local\Temp\payment document.exe
  "C:\Users\Admin\AppData\Local\Temp\payment document.exe"
  2⤵
  - Windows security modification
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:740
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\System32\cmd.exe" /c timeout 4.178
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2016
  - - C:\Windows\SysWOW64\timeout.exe
      timeout 4.178
      4⤵
      Delays execution with timeout.exe
      PID:1440
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\payment document.exe" -Force
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:520
- - C:\Users\Admin\AppData\Local\Temp\payment document.exe
    "C:\Users\Admin\AppData\Local\Temp\payment document.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1760
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:812
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\payment document.exe"
    3⤵
    - Deletes itself
    PID:292

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Privilege Escalation

Defense Evasion

Disabling Security Tools

T1089

Modify Registry

T1112

Web Service

T1102

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Web Service

T1102

Exfiltration

Impact

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Downloads

memory/520-45-0x0000000006380000-0x0000000006381000-memory.dmp

Download

memory/520-17-0x0000000005690000-0x0000000005691000-memory.dmp

Download

memory/520-46-0x0000000006390000-0x0000000006391000-memory.dmp

Download

memory/520-30-0x00000000062C0000-0x00000000062C1000-memory.dmp

Download

memory/520-8-0x0000000074CC0000-0x00000000753AE000-memory.dmp

Download

memory/520-23-0x00000000057D0000-0x00000000057D1000-memory.dmp

Download

memory/520-10-0x00000000048D0000-0x00000000048D1000-memory.dmp

Download

memory/520-11-0x00000000025C0000-0x00000000025C1000-memory.dmp

Download

memory/520-12-0x0000000005240000-0x0000000005241000-memory.dmp

Download

memory/520-22-0x0000000005730000-0x0000000005731000-memory.dmp

Download

memory/520-9-0x00000000023C0000-0x00000000023C1000-memory.dmp

Download

memory/520-31-0x0000000005650000-0x0000000005651000-memory.dmp

Download

memory/740-6-0x00000000020F0000-0x000000000213B000-memory.dmp

Download

memory/740-2-0x0000000074CC0000-0x00000000753AE000-memory.dmp

Download

memory/740-3-0x0000000000B40000-0x0000000000B41000-memory.dmp

Download

memory/812-48-0x0000000000880000-0x000000000088D000-memory.dmp

Download

memory/812-50-0x0000000001DF0000-0x0000000001F49000-memory.dmp

Download

memory/1256-51-0x0000000005010000-0x0000000005152000-memory.dmp

Download

memory/1760-13-0x0000000000400000-0x000000000042F000-memory.dmp

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