formbook | 1968771402227e2db604f63085104459de416107146f4d21a50c6e6e866f4324

Analysis

max time kernel
119s
max time network
117s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13-08-2024 08:24

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General

Target

808bc55dfd04bde28b5a81eeffa1be00N.exe
Size

1.7MB
MD5

808bc55dfd04bde28b5a81eeffa1be00
SHA1

1ac47e1d51466f5031b1096d40816abb90d36668
SHA256

1968771402227e2db604f63085104459de416107146f4d21a50c6e6e866f4324
SHA512

e8b2d3e05adcb2da69780f1a4cea88c7f830d9d9d3a41abacc2cdf22b06ed5992a77a61e142c2622e210bd981fa20f710183aa2efa164b60d3c6aaed4f227c59
SSDEEP

24576:0G/gSI7uzvdh53ATay0Lu9fE124K2Gzo/Xyhp4HtNLpTGLRvO4x:dgruLMayJWao/XC6B

Score

10^/10

formbook dcn0 credential_access discovery 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
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 3760 set thread context of 2272	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	92
PID 2272 set thread context of 3432	2272	AddInProcess32.exe	56
PID 3756 set thread context of 3432	3756	wlanext.exe	56

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wlanext.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-355097885-2402257403-2971294179-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	wlanext.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-355097885-2402257403-2971294179-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.EXE

Suspicious behavior: EnumeratesProcesses 63 IoCs

pid	Process
3760	808bc55dfd04bde28b5a81eeffa1be00N.exe
3760	808bc55dfd04bde28b5a81eeffa1be00N.exe
3760	808bc55dfd04bde28b5a81eeffa1be00N.exe
3760	808bc55dfd04bde28b5a81eeffa1be00N.exe
3760	808bc55dfd04bde28b5a81eeffa1be00N.exe
3760	808bc55dfd04bde28b5a81eeffa1be00N.exe
3760	808bc55dfd04bde28b5a81eeffa1be00N.exe
3760	808bc55dfd04bde28b5a81eeffa1be00N.exe
3760	808bc55dfd04bde28b5a81eeffa1be00N.exe
3760	808bc55dfd04bde28b5a81eeffa1be00N.exe
3760	808bc55dfd04bde28b5a81eeffa1be00N.exe
2272	AddInProcess32.exe
2272	AddInProcess32.exe
2272	AddInProcess32.exe
2272	AddInProcess32.exe
2272	AddInProcess32.exe
2272	AddInProcess32.exe
2272	AddInProcess32.exe
2272	AddInProcess32.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2272	AddInProcess32.exe
2272	AddInProcess32.exe
2272	AddInProcess32.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe
3756	wlanext.exe

Suspicious use of AdjustPrivilegeToken 19 IoCs

description	pid	Process
Token: SeDebugPrivilege	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe
Token: SeDebugPrivilege	2272	AddInProcess32.exe
Token: SeDebugPrivilege	3756	wlanext.exe
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE
Token: SeShutdownPrivilege	3432	Explorer.EXE
Token: SeCreatePagefilePrivilege	3432	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3432	Explorer.EXE

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3760 wrote to memory of 432	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	86
PID 3760 wrote to memory of 432	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	86
PID 3760 wrote to memory of 4828	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	87
PID 3760 wrote to memory of 4828	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	87
PID 3760 wrote to memory of 4396	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	88
PID 3760 wrote to memory of 4396	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	88
PID 3760 wrote to memory of 116	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	90
PID 3760 wrote to memory of 116	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	90
PID 3760 wrote to memory of 3308	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	91
PID 3760 wrote to memory of 3308	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	91
PID 3760 wrote to memory of 2272	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	92
PID 3760 wrote to memory of 2272	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	92
PID 3760 wrote to memory of 2272	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	92
PID 3760 wrote to memory of 2272	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	92
PID 3760 wrote to memory of 2272	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	92
PID 3760 wrote to memory of 2272	3760	808bc55dfd04bde28b5a81eeffa1be00N.exe	92
PID 3432 wrote to memory of 3756	3432	Explorer.EXE	93
PID 3432 wrote to memory of 3756	3432	Explorer.EXE	93
PID 3432 wrote to memory of 3756	3432	Explorer.EXE	93
PID 3756 wrote to memory of 4364	3756	wlanext.exe	104
PID 3756 wrote to memory of 4364	3756	wlanext.exe	104
PID 3756 wrote to memory of 4364	3756	wlanext.exe	104

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3432
- C:\Users\Admin\AppData\Local\Temp\808bc55dfd04bde28b5a81eeffa1be00N.exe
  "C:\Users\Admin\AppData\Local\Temp\808bc55dfd04bde28b5a81eeffa1be00N.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3760
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\EdmGen.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\EdmGen.exe"
    3⤵
    PID:432
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ComSvcConfig.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ComSvcConfig.exe"
    3⤵
    PID:4828
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe"
    3⤵
    PID:4396
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Microsoft.Workflow.Compiler.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Microsoft.Workflow.Compiler.exe"
    3⤵
    PID:116
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess.exe"
    3⤵
    PID:3308
- - C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess32.exe
    "C:\Windows\Microsoft.NET\Framework64\v4.0.30319\AddInProcess32.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2272
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3756
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:4364

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scripting

T1064

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Scripting

T1064

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2272-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2272-12-0x0000000001740000-0x0000000001750000-memory.dmp

Filesize
64KB

Download
memory/2272-4-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2272-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2272-9-0x0000000001840000-0x0000000001B8A000-memory.dmp

Filesize
3.3MB

Download
memory/3432-19-0x0000000009110000-0x0000000009238000-memory.dmp

Filesize
1.2MB

Download
memory/3432-13-0x0000000009110000-0x0000000009238000-memory.dmp

Filesize
1.2MB

Download
memory/3432-23-0x0000000008F70000-0x0000000009098000-memory.dmp

Filesize
1.2MB

Download
memory/3432-32-0x0000000008F70000-0x0000000009098000-memory.dmp

Filesize
1.2MB

Download
memory/3432-22-0x0000000008F70000-0x0000000009098000-memory.dmp

Filesize
1.2MB

Download
memory/3756-17-0x0000000000310000-0x000000000033D000-memory.dmp

Filesize
180KB

Download
memory/3756-14-0x0000000000EE0000-0x0000000000EF7000-memory.dmp

Filesize
92KB

Download
memory/3756-16-0x0000000000EE0000-0x0000000000EF7000-memory.dmp

Filesize
92KB

Download
memory/3760-1-0x000002428E780000-0x000002428E942000-memory.dmp

Filesize
1.8MB

Download
memory/3760-3-0x00007FF99E430000-0x00007FF99EEF1000-memory.dmp

Filesize
10.8MB

Download
memory/3760-2-0x00000242907E0000-0x0000024290852000-memory.dmp

Filesize
456KB

Download
memory/3760-7-0x00007FF99E430000-0x00007FF99EEF1000-memory.dmp

Filesize
10.8MB

Download
memory/3760-0-0x00007FF99E433000-0x00007FF99E435000-memory.dmp

Filesize
8KB

Download