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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation file.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	file.exe

Suspicious use of SetThreadContext 3 IoCs

Processes:

file.exefile.exewlanext.exe

description	pid	process	target process
PID 4960 set thread context of 3432	4960	file.exe	file.exe
PID 3432 set thread context of 3092	3432	file.exe	Explorer.EXE
PID 2844 set thread context of 3092	2844	wlanext.exe	Explorer.EXE

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

wlanext.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-929662420-1054238289-2961194603-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wlanext.exe

Suspicious behavior: EnumeratesProcesses 48 IoCs

Processes:

file.exefile.exewlanext.exe

pid	process
4960	file.exe
4960	file.exe
3432	file.exe
3432	file.exe
3432	file.exe
3432	file.exe
3432	file.exe
3432	file.exe
3432	file.exe
3432	file.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

Explorer.EXE

pid process

3092 Explorer.EXE
Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

file.exewlanext.exe

pid process

3432 file.exe
3432 file.exe
3432 file.exe
2844 wlanext.exe
2844 wlanext.exe
2844 wlanext.exe
2844 wlanext.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

file.exefile.exewlanext.exe

description pid process

Token: SeDebugPrivilege 4960 file.exe
Token: SeDebugPrivilege 3432 file.exe
Token: SeDebugPrivilege 2844 wlanext.exe

pid	process
3092	Explorer.EXE

pid	process
3432	file.exe
3432	file.exe
3432	file.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe
2844	wlanext.exe

description	pid	process
Token: SeDebugPrivilege	4960	file.exe
Token: SeDebugPrivilege	3432	file.exe
Token: SeDebugPrivilege	2844	wlanext.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

file.exeExplorer.EXEwlanext.exe

description	pid	process	target process
PID 4960 wrote to memory of 4764	4960	file.exe	file.exe
PID 4960 wrote to memory of 4764	4960	file.exe	file.exe
PID 4960 wrote to memory of 4764	4960	file.exe	file.exe
PID 4960 wrote to memory of 3432	4960	file.exe	file.exe
PID 4960 wrote to memory of 3432	4960	file.exe	file.exe
PID 4960 wrote to memory of 3432	4960	file.exe	file.exe
PID 4960 wrote to memory of 3432	4960	file.exe	file.exe
PID 4960 wrote to memory of 3432	4960	file.exe	file.exe
PID 4960 wrote to memory of 3432	4960	file.exe	file.exe
PID 3092 wrote to memory of 2844	3092	Explorer.EXE	wlanext.exe
PID 3092 wrote to memory of 2844	3092	Explorer.EXE	wlanext.exe
PID 3092 wrote to memory of 2844	3092	Explorer.EXE	wlanext.exe
PID 2844 wrote to memory of 4604	2844	wlanext.exe	Firefox.exe
PID 2844 wrote to memory of 4604	2844	wlanext.exe	Firefox.exe
PID 2844 wrote to memory of 4604	2844	wlanext.exe	Firefox.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:3092
- C:\Users\Admin\AppData\Local\Temp\file.exe
  "C:\Users\Admin\AppData\Local\Temp\file.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4960
- - C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    3⤵
    PID:4764
- - 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:3432
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2844
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4604

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

Replay Monitor

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Downloads

memory/2844-148-0x0000000000000000-mapping.dmp

Download
memory/2844-156-0x0000000001100000-0x000000000112D000-memory.dmp

Filesize
180KB

Download
memory/2844-154-0x0000000001740000-0x00000000017CF000-memory.dmp

Filesize
572KB

Download
memory/2844-153-0x0000000001100000-0x000000000112D000-memory.dmp

Filesize
180KB

Download
memory/2844-152-0x00000000018D0000-0x0000000001C1A000-memory.dmp

Filesize
3.3MB

Download
memory/2844-151-0x0000000000DE0000-0x0000000000DF7000-memory.dmp

Filesize
92KB

Download
memory/3092-147-0x00000000081D0000-0x00000000082CE000-memory.dmp

Filesize
1016KB

Download
memory/3092-155-0x0000000007DE0000-0x0000000007E7C000-memory.dmp

Filesize
624KB

Download
memory/3092-157-0x0000000007DE0000-0x0000000007E7C000-memory.dmp

Filesize
624KB

Download
memory/3432-150-0x0000000000401000-0x000000000042E000-memory.dmp

Filesize
180KB

Download
memory/3432-149-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3432-145-0x0000000000422000-0x0000000000424000-memory.dmp

Filesize
8KB

Download
memory/3432-141-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3432-146-0x0000000001150000-0x0000000001160000-memory.dmp

Filesize
64KB

Download
memory/3432-138-0x0000000000000000-mapping.dmp

Download
memory/3432-139-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3432-144-0x0000000001240000-0x000000000158A000-memory.dmp

Filesize
3.3MB

Download
memory/3432-142-0x0000000000401000-0x000000000042E000-memory.dmp

Filesize
180KB

Download
memory/4764-137-0x0000000000000000-mapping.dmp

Download
memory/4960-136-0x00000000095E0000-0x000000000967C000-memory.dmp

Filesize
624KB

Download
memory/4960-135-0x0000000005740000-0x000000000574A000-memory.dmp

Filesize
40KB

Download
memory/4960-134-0x00000000057A0000-0x0000000005832000-memory.dmp

Filesize
584KB

Download
memory/4960-133-0x0000000005CB0000-0x0000000006254000-memory.dmp

Filesize
5.6MB

Download
memory/4960-132-0x0000000000C80000-0x0000000000D9A000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads