formbook | 7a73079ae74c6c75f4f72bdae2437960533e8532a26b10dc98df4d8caf272f5e

Analysis

max time kernel
150s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27/09/2022, 16:33

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General

Target

DOCUMENTO DE ENVÍO DE DHL AWB _111832457673,pdf.exe
Size

461KB
MD5

26860d51fddf664076d1cf601e43ba1d
SHA1

dcd3fa1f67c3a7496caebd09c40cf8c6e5846c53
SHA256

7a73079ae74c6c75f4f72bdae2437960533e8532a26b10dc98df4d8caf272f5e
SHA512

e7aca103565635e73a5ce0fe64027dfdec356390f39537aec134611a6aeee176f666e5aada2cae90cebb7d3002bce43c0c251a79f28d95a09ca1a36e159dd513
SSDEEP

12288:vj3ZrR7VyT/IdT5D7E61U6NolW1M6wRs:vj9Rs/IdFPU6+l0

Score

10^/10

formbook xloader nrln loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

nrln

Decoy

IG7zJSm49UqTTuu/N/oTCIg=

CVLdAPgw0CRSMuZnRRU=

PiA5Z3umP2NyX81VGQhjWyS59nFYhXiG

5i6p4GeQqtBgNRfGNQ==

5984keYswxh8mGZHz4ipAHtQ

VNJaK4Gh0CrOvHpW/p353A==

71rEtrL2icToyKGhcWrTxjsFU5T98zeO

r3q1sy1iZaL+2XIUAob7yw==

9+83Qkrk/vV/jVXsDvoTCIg=

aMFAgYF1prov8/UErH/Y1A==

Alqtx/0rxwEbCLdudftl

ImCbnglBSUHF0mv2tTSP40bPeYao

s4DFNvAJ4GIJ+g==

phOa6mtS8QQICuZnRRU=

7TSu5vqRtB45EZtf4WDSTBHPeYao

ImPWqwUUIVWMQLyMbUab7tmspvNCcT8=

HF7jKjbGox2SAffTPw==

yAM3mOQot5l+cD0ikR5MGp8=

UYzW0/8z70JcQenVLidu1kLPeYao

OoCznp5UWz+hT9OBFXbfVhXPeYao

Extracted

Family

xloader

Version

3.8

Campaign

nrln

Decoy

IG7zJSm49UqTTuu/N/oTCIg=

CVLdAPgw0CRSMuZnRRU=

PiA5Z3umP2NyX81VGQhjWyS59nFYhXiG

5i6p4GeQqtBgNRfGNQ==

5984keYswxh8mGZHz4ipAHtQ

VNJaK4Gh0CrOvHpW/p353A==

71rEtrL2icToyKGhcWrTxjsFU5T98zeO

r3q1sy1iZaL+2XIUAob7yw==

9+83Qkrk/vV/jVXsDvoTCIg=

aMFAgYF1prov8/UErH/Y1A==

Alqtx/0rxwEbCLdudftl

ImCbnglBSUHF0mv2tTSP40bPeYao

s4DFNvAJ4GIJ+g==

phOa6mtS8QQICuZnRRU=

7TSu5vqRtB45EZtf4WDSTBHPeYao

ImPWqwUUIVWMQLyMbUab7tmspvNCcT8=

HF7jKjbGox2SAffTPw==

yAM3mOQot5l+cD0ikR5MGp8=

UYzW0/8z70JcQenVLidu1kLPeYao

OoCznp5UWz+hT9OBFXbfVhXPeYao

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4656 set thread context of 4260	4656	DOCUMENTO DE ENVÍO DE DHL AWB _111832457673,pdf.exe	81
PID 4260 set thread context of 684	4260	aspnet_compiler.exe	45
PID 4260 set thread context of 684	4260	aspnet_compiler.exe	45
PID 5060 set thread context of 684	5060	cscript.exe	45

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	cscript.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
4260	aspnet_compiler.exe
4260	aspnet_compiler.exe
4260	aspnet_compiler.exe
4260	aspnet_compiler.exe
4260	aspnet_compiler.exe
4260	aspnet_compiler.exe
4260	aspnet_compiler.exe
4260	aspnet_compiler.exe
4260	aspnet_compiler.exe
4260	aspnet_compiler.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
684	Explorer.EXE

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
4260	aspnet_compiler.exe
4260	aspnet_compiler.exe
4260	aspnet_compiler.exe
4260	aspnet_compiler.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe
5060	cscript.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4260	aspnet_compiler.exe
Token: SeDebugPrivilege	5060	cscript.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 4656 wrote to memory of 4260	4656	DOCUMENTO DE ENVÍO DE DHL AWB _111832457673,pdf.exe	81
PID 4656 wrote to memory of 4260	4656	DOCUMENTO DE ENVÍO DE DHL AWB _111832457673,pdf.exe	81
PID 4656 wrote to memory of 4260	4656	DOCUMENTO DE ENVÍO DE DHL AWB _111832457673,pdf.exe	81
PID 4656 wrote to memory of 4260	4656	DOCUMENTO DE ENVÍO DE DHL AWB _111832457673,pdf.exe	81
PID 4656 wrote to memory of 4260	4656	DOCUMENTO DE ENVÍO DE DHL AWB _111832457673,pdf.exe	81
PID 4656 wrote to memory of 4260	4656	DOCUMENTO DE ENVÍO DE DHL AWB _111832457673,pdf.exe	81
PID 684 wrote to memory of 5060	684	Explorer.EXE	86
PID 684 wrote to memory of 5060	684	Explorer.EXE	86
PID 684 wrote to memory of 5060	684	Explorer.EXE	86
PID 5060 wrote to memory of 1520	5060	cscript.exe	90
PID 5060 wrote to memory of 1520	5060	cscript.exe	90
PID 5060 wrote to memory of 1520	5060	cscript.exe	90

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:684
- C:\Users\Admin\AppData\Local\Temp\DOCUMENTO DE ENVÍO DE DHL AWB _111832457673,pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\DOCUMENTO DE ENVÍO DE DHL AWB _111832457673,pdf.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious use of WriteProcessMemory
  PID:4656
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4260
- C:\Windows\SysWOW64\cscript.exe
  "C:\Windows\SysWOW64\cscript.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:5060
- - C:\Program Files\Mozilla Firefox\Firefox.exe
    "C:\Program Files\Mozilla Firefox\Firefox.exe"
    3⤵
    PID:1520

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/684-141-0x0000000003010000-0x00000000030FA000-memory.dmp

Filesize
936KB

Download
memory/684-154-0x0000000008370000-0x00000000084CE000-memory.dmp

Filesize
1.4MB

Download
memory/684-152-0x0000000008370000-0x00000000084CE000-memory.dmp

Filesize
1.4MB

Download
memory/684-144-0x00000000081F0000-0x0000000008363000-memory.dmp

Filesize
1.4MB

Download
memory/4260-138-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/4260-147-0x0000000000401000-0x000000000042F000-memory.dmp

Filesize
184KB

Download
memory/4260-139-0x0000000000FC0000-0x000000000130A000-memory.dmp

Filesize
3.3MB

Download
memory/4260-140-0x0000000000B50000-0x0000000000B60000-memory.dmp

Filesize
64KB

Download
memory/4260-137-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4260-143-0x0000000000F30000-0x0000000000F40000-memory.dmp

Filesize
64KB

Download
memory/4260-136-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4260-146-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4260-134-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/4656-132-0x0000000000890000-0x0000000000904000-memory.dmp

Filesize
464KB

Download
memory/5060-148-0x00000000002C0000-0x00000000002E7000-memory.dmp

Filesize
156KB

Download
memory/5060-150-0x0000000002DE0000-0x000000000312A000-memory.dmp

Filesize
3.3MB

Download
memory/5060-149-0x0000000000DB0000-0x0000000000DDD000-memory.dmp

Filesize
180KB

Download
memory/5060-151-0x0000000002C40000-0x0000000002CCF000-memory.dmp

Filesize
572KB

Download
memory/5060-153-0x0000000000DB0000-0x0000000000DDD000-memory.dmp

Filesize
180KB

Download