formbook | 8e3182d757bc0bf0c8621baeef4e8c36fa410f5810c765fe4cb077edbdd9f43a

General

Target

Enquiry.exe
Size

1.1MB
MD5

b0ef6712d51b09cebdb50d6ca2f1f906
SHA1

2cf014ea0e857d0665e5c4969f5b997c1750737e
SHA256

48c36aaa98d96dfef34731302ab42e3b1fb5450af4f032ae68500eba9440555b
SHA512

04e0273aae2d9d1a7313942867d656a214b96c495575e9ad0ce6090cd8ecd05c2165fd4b42b54b7135f83fcc8594e3c537eb68cd3e4c643db35c3fa6dfff108b
SSDEEP

24576:dRmJkcoQricOIQxiZY1iadvFzj9veM6Q6xCCjArrlmbuUmf:SJZoQrbTFZY1iadNzj9GM6X/A1mbuUmf

Score

10^/10

formbook c24t discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c24t

Decoy

ealthbridgeccs.online

ngelicais.art

uktuksu1.sbs

fapoker.asia

hecreature.tech

orenzoplaybest14.xyz

op-smartphones-deal.today

delark.click

7395.asia

otnews.cfd

j16e.xyz

oko.events

fscxb.top

roudtxliberals.vote

asas-br.bond

ourhealthyourlife.shop

fbpd.top

j9u9.xyz

uijiuw.top

aming-chair-37588.bond

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2332-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2332-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2228-12-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2284 set thread context of 2332	2284	Enquiry.exe	28
PID 2332 set thread context of 1212	2332	svchost.exe	21
PID 2228 set thread context of 1212	2228	cmmon32.exe	21

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 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	Enquiry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmmon32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2332	svchost.exe
2332	svchost.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe
2228	cmmon32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2284	Enquiry.exe
2332	svchost.exe
2332	svchost.exe
2332	svchost.exe
2228	cmmon32.exe
2228	cmmon32.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2332	svchost.exe
Token: SeDebugPrivilege	2228	cmmon32.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2284 wrote to memory of 2332	2284	Enquiry.exe	28
PID 2284 wrote to memory of 2332	2284	Enquiry.exe	28
PID 2284 wrote to memory of 2332	2284	Enquiry.exe	28
PID 2284 wrote to memory of 2332	2284	Enquiry.exe	28
PID 2284 wrote to memory of 2332	2284	Enquiry.exe	28
PID 1212 wrote to memory of 2228	1212	Explorer.EXE	29
PID 1212 wrote to memory of 2228	1212	Explorer.EXE	29
PID 1212 wrote to memory of 2228	1212	Explorer.EXE	29
PID 1212 wrote to memory of 2228	1212	Explorer.EXE	29
PID 2228 wrote to memory of 2732	2228	cmmon32.exe	30
PID 2228 wrote to memory of 2732	2228	cmmon32.exe	30
PID 2228 wrote to memory of 2732	2228	cmmon32.exe	30
PID 2228 wrote to memory of 2732	2228	cmmon32.exe	30

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Users\Admin\AppData\Local\Temp\Enquiry.exe
  "C:\Users\Admin\AppData\Local\Temp\Enquiry.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2284
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Enquiry.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2332
- C:\Windows\SysWOW64\cmmon32.exe
  "C:\Windows\SysWOW64\cmmon32.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2228
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2732

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1212-8-0x0000000007420000-0x0000000007594000-memory.dmp

Filesize
1.5MB

Download
memory/1212-13-0x0000000007420000-0x0000000007594000-memory.dmp

Filesize
1.5MB

Download
memory/2228-9-0x00000000002A0000-0x00000000002AD000-memory.dmp

Filesize
52KB

Download
memory/2228-11-0x00000000002A0000-0x00000000002AD000-memory.dmp

Filesize
52KB

Download
memory/2228-12-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2284-2-0x0000000003DD0000-0x00000000041D0000-memory.dmp

Filesize
4.0MB

Download
memory/2332-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2332-4-0x0000000000930000-0x0000000000C33000-memory.dmp

Filesize
3.0MB

Download
memory/2332-7-0x00000000001D0000-0x00000000001E4000-memory.dmp

Filesize
80KB

Download
memory/2332-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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