formbook | 6fef888e6f662744463a37949ee1df183c279e42baf355319484293748ded41b

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
21-03-2023 18:10

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General

Target

Comprobante de pago INT_EMP221226 20230320_$2763320.exe
Size

1.1MB
MD5

12411b3710982c190df4993dfe2e3761
SHA1

c66d8a7b15ed34380fde79e4cd2892f934e4b8bc
SHA256

6fef888e6f662744463a37949ee1df183c279e42baf355319484293748ded41b
SHA512

386a3e3036cd2317aaf1b984c13a49d1d678c82c46de9f2001aa4243892ebc330b6005a2490a3683efbf3d686bfee350c4afa1ea2851b86f3b52079bebc57ab2
SSDEEP

24576:4qIRuN3c+/weL3uzxKPH1BYBWLv6QT6JdrD:4HRuNMqwYuzxKPfYIj6QGJdr

Score

10^/10

formbook jr22 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

jr22

Decoy

941zhe.com

lunarportal.space

xn--osmaniyeiek-t9ab.online

trejoscar.com

nrnursery.com

quizcannot.cfd

seedstockersthailand.com

watsonwindow.com

wjfholdings.com

weziclondon.com

naruot.xyz

yeji.plus

classicmenstore.com

oharatravel.com

therapyplankits.com

keviegreshonpt.com

qdlyner.com

seithupaarungal.com

casinorates.online

8ug4as.icu

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/3588-150-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3588-176-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral2/memory/3832-212-0x00000000009C0000-0x00000000009EF000-memory.dmp	formbook
behavioral2/memory/3832-222-0x00000000009C0000-0x00000000009EF000-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

Processes:

Comprobante de pago INT_EMP221226 20230320_$2763320.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	Comprobante de pago INT_EMP221226 20230320_$2763320.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

Comprobante de pago INT_EMP221226 20230320_$2763320.exeComprobante de pago INT_EMP221226 20230320_$2763320.exesystray.exe

description	pid	process	target process
PID 3040 set thread context of 3588	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
PID 3588 set thread context of 3120	3588	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	Explorer.EXE
PID 3832 set thread context of 3120	3832	systray.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
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

Processes:

schtasks.exe

pid process

4740 schtasks.exe

pid	process
4740	schtasks.exe

Suspicious behavior: EnumeratesProcesses 38 IoCs

Processes:

powershell.exepowershell.exeComprobante de pago INT_EMP221226 20230320_$2763320.exesystray.exe

pid	process
3292	powershell.exe
2856	powershell.exe
3588	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
3588	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
3292	powershell.exe
3588	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
3588	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
2856	powershell.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe
3832	systray.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3120 Explorer.EXE

pid	process
3120	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Comprobante de pago INT_EMP221226 20230320_$2763320.exesystray.exe

pid	process
3588	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
3588	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
3588	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
3832	systray.exe
3832	systray.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

Processes:

powershell.exepowershell.exeComprobante de pago INT_EMP221226 20230320_$2763320.exesystray.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	3292	powershell.exe
Token: SeDebugPrivilege	2856	powershell.exe
Token: SeDebugPrivilege	3588	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
Token: SeDebugPrivilege	3832	systray.exe
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE
Token: SeShutdownPrivilege	3120	Explorer.EXE
Token: SeCreatePagefilePrivilege	3120	Explorer.EXE

Suspicious use of WriteProcessMemory 21 IoCs

Processes:

Comprobante de pago INT_EMP221226 20230320_$2763320.exeExplorer.EXEsystray.exe

description	pid	process	target process
PID 3040 wrote to memory of 3292	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	powershell.exe
PID 3040 wrote to memory of 3292	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	powershell.exe
PID 3040 wrote to memory of 3292	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	powershell.exe
PID 3040 wrote to memory of 2856	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	powershell.exe
PID 3040 wrote to memory of 2856	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	powershell.exe
PID 3040 wrote to memory of 2856	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	powershell.exe
PID 3040 wrote to memory of 4740	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	schtasks.exe
PID 3040 wrote to memory of 4740	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	schtasks.exe
PID 3040 wrote to memory of 4740	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	schtasks.exe
PID 3040 wrote to memory of 3588	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
PID 3040 wrote to memory of 3588	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
PID 3040 wrote to memory of 3588	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
PID 3040 wrote to memory of 3588	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
PID 3040 wrote to memory of 3588	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
PID 3040 wrote to memory of 3588	3040	Comprobante de pago INT_EMP221226 20230320_$2763320.exe	Comprobante de pago INT_EMP221226 20230320_$2763320.exe
PID 3120 wrote to memory of 3832	3120	Explorer.EXE	systray.exe
PID 3120 wrote to memory of 3832	3120	Explorer.EXE	systray.exe
PID 3120 wrote to memory of 3832	3120	Explorer.EXE	systray.exe
PID 3832 wrote to memory of 3968	3832	systray.exe	cmd.exe
PID 3832 wrote to memory of 3968	3832	systray.exe	cmd.exe
PID 3832 wrote to memory of 3968	3832	systray.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3120
- C:\Users\Admin\AppData\Local\Temp\Comprobante de pago INT_EMP221226 20230320_$2763320.exe
  "C:\Users\Admin\AppData\Local\Temp\Comprobante de pago INT_EMP221226 20230320_$2763320.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:3040
- - 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\Comprobante de pago INT_EMP221226 20230320_$2763320.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3292
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\LeveKWtqgONPA.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2856
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LeveKWtqgONPA" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC4B7.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:4740
- - C:\Users\Admin\AppData\Local\Temp\Comprobante de pago INT_EMP221226 20230320_$2763320.exe
    "C:\Users\Admin\AppData\Local\Temp\Comprobante de pago INT_EMP221226 20230320_$2763320.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:3588
- C:\Windows\SysWOW64\systray.exe
  "C:\Windows\SysWOW64\systray.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3832
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Comprobante de pago INT_EMP221226 20230320_$2763320.exe"
    3⤵
    PID:3968

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
18KB

MD5
878b36d65190a0b5d0c0bd7c6f601c21

SHA1
d45bd62e42fdb0c41b3b98ea9fd35b2cc1386185

SHA256
0fff66856edce7a6a78738e373b9b05c8a319c9ef0dfd1a5d93c7d387f23adb4

SHA512
285fc9280cfc83c79ccf23b72d0d4d666e60c87e01a358836adbaacee56835b1adaa4cf6b325c0ac980dc6dfcdaa73c261ab2871dc3aa8cb3100cc52b7ad0dc6

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_efizx1eh.r45.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpC4B7.tmp

Filesize
1KB

MD5
3c30b4cf7d4f0be92373256da00e1e58

SHA1
e76f5e7e5fc0a9a9be14b19501b4e48f1ed9baae

SHA256
ad475a285edf2aa6ff28b845bb29f7bb0da366e5bf8ba1f4ad25ec4a16c440dc

SHA512
9625d89246eb6523cbdfcdf40a16c78c03ab40871b5675bbafcd58157aef0a1bfff872d9be6a969498bb22929dbbe987e60cb0a24c4f74ec4741b53f476706d3

Download Submit
memory/2856-216-0x0000000007E40000-0x0000000007E48000-memory.dmp

Filesize
32KB

Download
memory/2856-206-0x000000007F9F0000-0x000000007FA00000-memory.dmp

Filesize
64KB

Download
memory/2856-180-0x00000000030E0000-0x00000000030F0000-memory.dmp

Filesize
64KB

Download
memory/2856-194-0x0000000006D60000-0x0000000006D7E000-memory.dmp

Filesize
120KB

Download
memory/2856-145-0x0000000005AA0000-0x00000000060C8000-memory.dmp

Filesize
6.2MB

Download
memory/2856-205-0x0000000007B20000-0x0000000007B3A000-memory.dmp

Filesize
104KB

Download
memory/2856-211-0x0000000007DA0000-0x0000000007E36000-memory.dmp

Filesize
600KB

Download
memory/2856-149-0x0000000005950000-0x00000000059B6000-memory.dmp

Filesize
408KB

Download
memory/2856-183-0x0000000070CC0000-0x0000000070D0C000-memory.dmp

Filesize
304KB

Download
memory/2856-152-0x00000000061D0000-0x0000000006236000-memory.dmp

Filesize
408KB

Download
memory/2856-153-0x00000000030E0000-0x00000000030F0000-memory.dmp

Filesize
64KB

Download
memory/2856-215-0x0000000007E60000-0x0000000007E7A000-memory.dmp

Filesize
104KB

Download
memory/2856-214-0x0000000007D50000-0x0000000007D5E000-memory.dmp

Filesize
56KB

Download
memory/2856-155-0x00000000030E0000-0x00000000030F0000-memory.dmp

Filesize
64KB

Download
memory/3040-134-0x00000000053D0000-0x0000000005974000-memory.dmp

Filesize
5.6MB

Download
memory/3040-135-0x0000000004EC0000-0x0000000004F52000-memory.dmp

Filesize
584KB

Download
memory/3040-138-0x00000000050F0000-0x0000000005100000-memory.dmp

Filesize
64KB

Download
memory/3040-136-0x0000000004E60000-0x0000000004E6A000-memory.dmp

Filesize
40KB

Download
memory/3040-137-0x00000000050F0000-0x0000000005100000-memory.dmp

Filesize
64KB

Download
memory/3040-133-0x0000000000380000-0x0000000000496000-memory.dmp

Filesize
1.1MB

Download
memory/3040-139-0x0000000006440000-0x00000000064DC000-memory.dmp

Filesize
624KB

Download
memory/3120-179-0x00000000083C0000-0x000000000856B000-memory.dmp

Filesize
1.7MB

Download
memory/3120-225-0x0000000002DB0000-0x0000000002ED2000-memory.dmp

Filesize
1.1MB

Download
memory/3120-226-0x0000000002DB0000-0x0000000002ED2000-memory.dmp

Filesize
1.1MB

Download
memory/3120-228-0x0000000002DB0000-0x0000000002ED2000-memory.dmp

Filesize
1.1MB

Download
memory/3292-184-0x0000000070CC0000-0x0000000070D0C000-memory.dmp

Filesize
304KB

Download
memory/3292-204-0x0000000007AB0000-0x000000000812A000-memory.dmp

Filesize
6.5MB

Download
memory/3292-181-0x0000000004B70000-0x0000000004B80000-memory.dmp

Filesize
64KB

Download
memory/3292-182-0x00000000070E0000-0x0000000007112000-memory.dmp

Filesize
200KB

Download
memory/3292-207-0x000000007F790000-0x000000007F7A0000-memory.dmp

Filesize
64KB

Download
memory/3292-208-0x0000000007470000-0x000000000747A000-memory.dmp

Filesize
40KB

Download
memory/3292-148-0x0000000005130000-0x0000000005152000-memory.dmp

Filesize
136KB

Download
memory/3292-144-0x0000000004B20000-0x0000000004B56000-memory.dmp

Filesize
216KB

Download
memory/3292-175-0x0000000006100000-0x000000000611E000-memory.dmp

Filesize
120KB

Download
memory/3292-147-0x0000000004B70000-0x0000000004B80000-memory.dmp

Filesize
64KB

Download
memory/3292-151-0x0000000004B70000-0x0000000004B80000-memory.dmp

Filesize
64KB

Download
memory/3588-177-0x00000000017D0000-0x0000000001B1A000-memory.dmp

Filesize
3.3MB

Download
memory/3588-150-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3588-176-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3588-178-0x0000000001CD0000-0x0000000001CE4000-memory.dmp

Filesize
80KB

Download
memory/3832-213-0x0000000002B70000-0x0000000002EBA000-memory.dmp

Filesize
3.3MB

Download
memory/3832-212-0x00000000009C0000-0x00000000009EF000-memory.dmp

Filesize
188KB

Download
memory/3832-210-0x00000000008F0000-0x00000000008F6000-memory.dmp

Filesize
24KB

Download
memory/3832-222-0x00000000009C0000-0x00000000009EF000-memory.dmp

Filesize
188KB

Download
memory/3832-224-0x0000000002A00000-0x0000000002A93000-memory.dmp

Filesize
588KB

Download
memory/3832-209-0x00000000008F0000-0x00000000008F6000-memory.dmp

Filesize
24KB

Download