formbook | e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae

Analysis

max time kernel
101s
max time network
105s
platform
windows11-21h2_x64
resource
win11-20250619-en
resource tags

arch:x64arch:x86image:win11-20250619-enlocale:en-usos:windows11-21h2-x64system
submitted
07/07/2025, 14:17

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General

Target
e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe
Size 720KB
Sample250707-rlwq4asrt6
SHA256 e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae
MD5 6dfbfaf345226ae453c7f3a2b39fb8e5
SHA1 dbb8bb6cd47267cf83ff3b594514451fef9f77ed
SHA512 b3aadd88da967fbd15500d69ccc78b62ddb0f9e1ba9dcc3abb78054a153552ffdd291d3e055448948ef167efdb1f987e7726e768d2f2a42fbd07d4e1d0c1907d
SSDEEP 12288:wvQa9doBLbOI8ewPrT19zvgKp+1hGr7wYN2ONnOx/GgE0iVDOPX3TVYoSCmLBzni:Sr9CBLbzwHzvgKp+DGnN2ONOxQlFIbSk
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

formbook discovery rat spyware stealer trojan

Malware Config

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral2/memory/3184-11-0x0000000000400000-0x0000000000449000-memory.dmp	family_formbook
behavioral2/memory/3184-13-0x0000000000400000-0x0000000000449000-memory.dmp	family_formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4572 set thread context of 3184	4572	e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe	78

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	e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4572	e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe
4572	e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe
3184	RegSvcs.exe
3184	RegSvcs.exe
3184	RegSvcs.exe
3184	RegSvcs.exe
3184	RegSvcs.exe
3184	RegSvcs.exe
3184	RegSvcs.exe
3184	RegSvcs.exe
3184	RegSvcs.exe
3184	RegSvcs.exe
3184	RegSvcs.exe
3184	RegSvcs.exe
3184	RegSvcs.exe
3184	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4572	e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4572 wrote to memory of 3184	4572	e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe	78
PID 4572 wrote to memory of 3184	4572	e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe	78
PID 4572 wrote to memory of 3184	4572	e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe	78
PID 4572 wrote to memory of 3184	4572	e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe	78
PID 4572 wrote to memory of 3184	4572	e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe	78
PID 4572 wrote to memory of 3184	4572	e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe	78

C:\Users\Admin\AppData\Local\Temp\e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe
"C:\Users\Admin\AppData\Local\Temp\e8b879b31a0509b447b0975ee255f07ba148c0a6a90cdba08bc7172b820d35ae.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4572
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:3184

Network

MITRE ATT&CK Enterprise v16

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/3184-9-0x0000000000400000-0x0000000000449000-memory.dmp

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memory/3184-13-0x0000000000400000-0x0000000000449000-memory.dmp

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memory/3184-12-0x00000000012E0000-0x0000000001636000-memory.dmp

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memory/3184-11-0x0000000000400000-0x0000000000449000-memory.dmp

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memory/4572-3-0x00000000057A0000-0x00000000057B0000-memory.dmp

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memory/4572-5-0x00000000059A0000-0x0000000005A3C000-memory.dmp

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memory/4572-6-0x0000000005920000-0x0000000005934000-memory.dmp

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memory/4572-7-0x00000000057A0000-0x00000000057B0000-memory.dmp

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memory/4572-8-0x0000000006E90000-0x0000000006F22000-memory.dmp

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memory/4572-4-0x0000000005700000-0x000000000570A000-memory.dmp

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memory/4572-0-0x0000000000B00000-0x0000000000BBA000-memory.dmp

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memory/4572-2-0x0000000005650000-0x00000000056E2000-memory.dmp

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memory/4572-1-0x0000000005CE0000-0x0000000006286000-memory.dmp

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