formbook | 7a5a0ac254e92c52dd034502975e23aa340aa8d61e5ad03e6125a9e5ce0500fb

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
26-12-2024 21:56

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General

Target

40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe
Size

1.1MB
MD5

c83f4de174d804301f193c6b1ebbe1e1
SHA1

e988e9055ee10cc7a8df7a056e0ebf68f473b93b
SHA256

40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5
SHA512

d9e4096819795ab6f329e16de57938d7ed05448aec340abc1e92a68913ae417612c242459703b53f77b481197cadff0e452bf5864f10793f297bde3e2ea70832
SSDEEP

12288:XbvsEh1mMhKz6qYi0MHaXAhvI0R2X0iQcsiVFQDNBS+suogRQeW08f2r2:QEhz8z6lRc2XcczyxM8ogo0

Score

10^/10

formbook bwk discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

bwk

Decoy

alexrabus.com

education618.com

nelivo.com

gosanispire.com

cdaboozecruise.com

lovenfys.com

wellsleyarts.com

madcord.net

aadiventura.com

prideglobalholdings.com

tu-aviso.com

rjroof.com

upthehilldogwalking.com

ultraletefit.com

opinetree.com

retiredalsolovingit.com

oculensweb.com

laurartproductions.com

uncontenido.com

elisabethchin.com

Signatures

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

CustAttr .NET packer 1 IoCs

Detects CustAttr .NET packer in memory.

resource	yara_rule
behavioral1/memory/2800-3-0x0000000000530000-0x000000000053C000-memory.dmp	CustAttr

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral1/memory/1296-14-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2800 set thread context of 1296	2800	40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe	31

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	40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1296	40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2800 wrote to memory of 1296	2800	40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe	31
PID 2800 wrote to memory of 1296	2800	40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe	31
PID 2800 wrote to memory of 1296	2800	40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe	31
PID 2800 wrote to memory of 1296	2800	40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe	31
PID 2800 wrote to memory of 1296	2800	40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe	31
PID 2800 wrote to memory of 1296	2800	40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe	31
PID 2800 wrote to memory of 1296	2800	40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe	31

C:\Users\Admin\AppData\Local\Temp\40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe
"C:\Users\Admin\AppData\Local\Temp\40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2800
- C:\Users\Admin\AppData\Local\Temp\40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe
  "C:\Users\Admin\AppData\Local\Temp\40619e22c2b83a5d635d00d27fd1f5f1b4f38dcb109db827e0947a72458e19d5.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:1296

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1296-8-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1296-16-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Filesize
3.0MB

Download
memory/1296-12-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1296-14-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1296-10-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2800-3-0x0000000000530000-0x000000000053C000-memory.dmp

Filesize
48KB

Download
memory/2800-6-0x0000000005190000-0x0000000005246000-memory.dmp

Filesize
728KB

Download
memory/2800-7-0x0000000004640000-0x00000000046B4000-memory.dmp

Filesize
464KB

Download
memory/2800-5-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/2800-4-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

Filesize
4KB

Download
memory/2800-0-0x0000000074B4E000-0x0000000074B4F000-memory.dmp

Filesize
4KB

Download
memory/2800-2-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/2800-15-0x0000000074B40000-0x000000007522E000-memory.dmp

Filesize
6.9MB

Download
memory/2800-1-0x0000000000E50000-0x0000000000F6A000-memory.dmp

Filesize
1.1MB

Download