formbook | 46c11187b0eeba2ad55a36d97fc897cd2612a4cdf491405826346092af6e261e

General

Target

file.exe
Size

1.1MB
MD5

6a48cce91cb89eb4405f9ba2c2124cd6
SHA1

5de7e1fd1eac0078123e4c9b63f11ce6d0527152
SHA256

46c11187b0eeba2ad55a36d97fc897cd2612a4cdf491405826346092af6e261e
SHA512

bc95a9a76dd49db6669bf9ccb2acbf23db77fd4f774eca37483768ef87b6319c8525b6acdd67ceb82fad17fcfa52f6c445367aa525775a422095a5fa20d65d34
SSDEEP

24576:szq5gh/aw3XyilFIUM7jP9o71sURfUHvB32Dz:szqKh/d3Xy8FIUMvPIXfkU

Score

10^/10

formbook dcn0 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

dcn0

Decoy

ZVx68vDtAMBCwg==

oBMBvsNORkM/O/ox

Ff9pISWkm6eG4lByIspp

c2T42c6CIIF6B8xTxm9XzpVw

bvjhxRbnAC183w==

0lTttSNG4HUDNflyIspp

hPXFlstqiHA/O/ox

WLR+MeerxZ0cNn1ja+IQAYo=

IHRn4xXOVKi477zarG+ObSy7YJA=

Xhf3e+tdAC183w==

Xk0ZAezv2rWH

kngo+vBeSRN7AszNwam3Osmguuqc0MoC

a2Qp7a+E8fSw7LDjpnqEKjsRZA==

3zjy4E7+QM48wg==

YcCmqT3OUNAigVott2pBKiy7YJA=

4+SMeX1juat/5cZ1AZihcyy7YJA=

/+m7sro0OBTl3TMpCw==

i2ctEfe4//a64yklMsgS2J90

+loZ2QKGX0UWgpvErMs=

b9BNCnJWQJS8IfsR0uR3bCy7YJA=

Signatures

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

file.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\International\Geo\Nation file.exe
Loads dropped DLL 1 IoCs

Processes:

wuapp.exe

pid process

1788 wuapp.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Control Panel\International\Geo\Nation	file.exe

pid	process
1788	wuapp.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

file.exefile.exewuapp.exe

description	pid	process	target process
PID 1148 set thread context of 2024	1148	file.exe	file.exe
PID 2024 set thread context of 1380	2024	file.exe	Explorer.EXE
PID 1788 set thread context of 1380	1788	wuapp.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wuapp.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-999675638-2867687379-27515722-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wuapp.exe

Suspicious behavior: EnumeratesProcesses 11 IoCs

Processes:

file.exewuapp.exe

pid	process
2024	file.exe
2024	file.exe
2024	file.exe
2024	file.exe
1788	wuapp.exe
1788	wuapp.exe
1788	wuapp.exe
1788	wuapp.exe
1788	wuapp.exe
1788	wuapp.exe
1788	wuapp.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

file.exewuapp.exe

pid process

2024 file.exe
2024 file.exe
2024 file.exe
1788 wuapp.exe
1788 wuapp.exe
1788 wuapp.exe
1788 wuapp.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

file.exewuapp.exe

description pid process

Token: SeDebugPrivilege 2024 file.exe
Token: SeDebugPrivilege 1788 wuapp.exe
Suspicious use of FindShellTrayWindow 2 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
1380 Explorer.EXE
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

Explorer.EXE

pid process

1380 Explorer.EXE
1380 Explorer.EXE

description	pid	process
Token: SeDebugPrivilege	2024	file.exe
Token: SeDebugPrivilege	1788	wuapp.exe

pid	process
1380	Explorer.EXE
1380	Explorer.EXE

pid	process
1380	Explorer.EXE
1380	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

file.exeExplorer.EXEwuapp.exe

description	pid	process	target process
PID 1148 wrote to memory of 2024	1148	file.exe	file.exe
PID 1148 wrote to memory of 2024	1148	file.exe	file.exe
PID 1148 wrote to memory of 2024	1148	file.exe	file.exe
PID 1148 wrote to memory of 2024	1148	file.exe	file.exe
PID 1148 wrote to memory of 2024	1148	file.exe	file.exe
PID 1148 wrote to memory of 2024	1148	file.exe	file.exe
PID 1148 wrote to memory of 2024	1148	file.exe	file.exe
PID 1380 wrote to memory of 1788	1380	Explorer.EXE	wuapp.exe
PID 1380 wrote to memory of 1788	1380	Explorer.EXE	wuapp.exe
PID 1380 wrote to memory of 1788	1380	Explorer.EXE	wuapp.exe
PID 1380 wrote to memory of 1788	1380	Explorer.EXE	wuapp.exe
PID 1380 wrote to memory of 1788	1380	Explorer.EXE	wuapp.exe
PID 1380 wrote to memory of 1788	1380	Explorer.EXE	wuapp.exe
PID 1380 wrote to memory of 1788	1380	Explorer.EXE	wuapp.exe
PID 1788 wrote to memory of 1948	1788	wuapp.exe	Firefox.exe
PID 1788 wrote to memory of 1948	1788	wuapp.exe	Firefox.exe
PID 1788 wrote to memory of 1948	1788	wuapp.exe	Firefox.exe
PID 1788 wrote to memory of 1948	1788	wuapp.exe	Firefox.exe
PID 1788 wrote to memory of 1948	1788	wuapp.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1380
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:1148
- - C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    3⤵
    - Checks computer location settings
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2024
- C:\Windows\SysWOW64\wuapp.exe
  "C:\Windows\SysWOW64\wuapp.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1788
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1948

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\sqlite3.dll

Filesize
1.1MB

MD5
f55e5766477de5997da50f12c9c74c91

SHA1
4dc98900a887be95411f07b9e597c57bdc7dbab3

SHA256
90be88984ee60864256378c952d44b13d55ac032ab6a7b8c698885176bcece69

SHA512
983417a297e68b58fbd1c07fed7a1697d249110a2c10644b2dc96e3facedd3fbfbcac6a7809631ffd62894f02cadd4d3e62022b9e5e026e5bf434f1eb1878f05

Download Submit
memory/1148-55-0x0000000074C11000-0x0000000074C13000-memory.dmp

Filesize
8KB

Download
memory/1148-56-0x00000000003E0000-0x00000000003F8000-memory.dmp

Filesize
96KB

Download
memory/1148-57-0x0000000000400000-0x000000000040C000-memory.dmp

Filesize
48KB

Download
memory/1148-58-0x0000000006010000-0x00000000060BC000-memory.dmp

Filesize
688KB

Download
memory/1148-59-0x0000000004410000-0x0000000004482000-memory.dmp

Filesize
456KB

Download
memory/1148-54-0x0000000000EF0000-0x000000000100A000-memory.dmp

Filesize
1.1MB

Download
memory/1380-82-0x0000000004EE0000-0x0000000004FB5000-memory.dmp

Filesize
852KB

Download
memory/1380-80-0x0000000004AB0000-0x0000000004B67000-memory.dmp

Filesize
732KB

Download
memory/1380-79-0x0000000004EE0000-0x0000000004FB5000-memory.dmp

Filesize
852KB

Download
memory/1380-72-0x0000000004AB0000-0x0000000004B67000-memory.dmp

Filesize
732KB

Download
memory/1788-73-0x0000000000000000-mapping.dmp

Download
memory/1788-81-0x00000000000E0000-0x000000000010D000-memory.dmp

Filesize
180KB

Download
memory/1788-78-0x0000000001DF0000-0x0000000001E7F000-memory.dmp

Filesize
572KB

Download
memory/1788-76-0x0000000001F10000-0x0000000002213000-memory.dmp

Filesize
3.0MB

Download
memory/1788-75-0x00000000000E0000-0x000000000010D000-memory.dmp

Filesize
180KB

Download
memory/1788-74-0x0000000000200000-0x000000000020B000-memory.dmp

Filesize
44KB

Download
memory/2024-60-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2024-71-0x0000000000150000-0x0000000000160000-memory.dmp

Filesize
64KB

Download
memory/2024-70-0x0000000000422000-0x0000000000424000-memory.dmp

Filesize
8KB

Download
memory/2024-69-0x00000000008F0000-0x0000000000BF3000-memory.dmp

Filesize
3.0MB

Download
memory/2024-68-0x0000000000401000-0x000000000042E000-memory.dmp

Filesize
180KB

Download
memory/2024-67-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2024-66-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2024-64-0x00000000004012B0-mapping.dmp

Download
memory/2024-63-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2024-61-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads