formbook | adbf038071e02cda0a9e66fda683ab1d385a2eeb6af9a79cbeba0f9d69e25856

General

Target

Purchase order.exe
Size

1.1MB
MD5

5edb0f8e0ef6dd1e0d402f644c874e0f
SHA1

46e50727606336dbe5257ba0c9e77006b7b710e0
SHA256

5282b57b495bb6cca55225f7de91b203403b8ce35e41e62703e803f4aa134eb8
SHA512

8129e3a284ed8514ed71367d03e8afd537d6636a78dce7995d2f48f32857a67a87dcdca102a45b33ab56e5e6486c45205d552b51b6907eda801def655288e6a8
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaC6WzN6M6ZdLNX50DEMhc:7JZoQrbTFZY1iaC6sb6TnAc

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/2744-3-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2744-6-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2744-11-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1940 set thread context of 2744	1940	Purchase order.exe	30
PID 2744 set thread context of 1212	2744	svchost.exe	21
PID 2744 set thread context of 1212	2744	svchost.exe	21

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2780	2736	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 2 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	Purchase order.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2744	svchost.exe
2744	svchost.exe
2744	svchost.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1940	Purchase order.exe
2744	svchost.exe
2744	svchost.exe
2744	svchost.exe
2744	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2744	svchost.exe
Token: SeShutdownPrivilege	1212	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
1940	Purchase order.exe
1940	Purchase order.exe
1212	Explorer.EXE
1212	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1940	Purchase order.exe
1940	Purchase order.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2744	1940	Purchase order.exe	30
PID 1940 wrote to memory of 2744	1940	Purchase order.exe	30
PID 1940 wrote to memory of 2744	1940	Purchase order.exe	30
PID 1940 wrote to memory of 2744	1940	Purchase order.exe	30
PID 1940 wrote to memory of 2744	1940	Purchase order.exe	30
PID 1212 wrote to memory of 2736	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2736	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2736	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2736	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2736	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2736	1212	Explorer.EXE	31
PID 1212 wrote to memory of 2736	1212	Explorer.EXE	31
PID 2736 wrote to memory of 2780	2736	msiexec.exe	32
PID 2736 wrote to memory of 2780	2736	msiexec.exe	32
PID 2736 wrote to memory of 2780	2736	msiexec.exe	32
PID 2736 wrote to memory of 2780	2736	msiexec.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1212
- C:\Users\Admin\AppData\Local\Temp\Purchase order.exe
  "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:1940
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\Purchase order.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2744
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2736
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2736 -s 268
    3⤵
    - Program crash
    PID:2780

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/1212-20-0x00000000069C0000-0x0000000006ADD000-memory.dmp

Filesize
1.1MB

Download
memory/1212-8-0x0000000003EE0000-0x00000000040E0000-memory.dmp

Filesize
2.0MB

Download
memory/1212-9-0x0000000006850000-0x0000000006913000-memory.dmp

Filesize
780KB

Download
memory/1212-14-0x00000000069C0000-0x0000000006ADD000-memory.dmp

Filesize
1.1MB

Download
memory/1212-13-0x0000000006850000-0x0000000006913000-memory.dmp

Filesize
780KB

Download
memory/1940-2-0x00000000038D0000-0x0000000003CD0000-memory.dmp

Filesize
4.0MB

Download
memory/2736-15-0x00000000003D0000-0x00000000003E4000-memory.dmp

Filesize
80KB

Download
memory/2736-18-0x00000000003D0000-0x00000000003E4000-memory.dmp

Filesize
80KB

Download
memory/2736-16-0x00000000003D0000-0x00000000003E4000-memory.dmp

Filesize
80KB

Download
memory/2744-7-0x0000000000150000-0x0000000000164000-memory.dmp

Filesize
80KB

Download
memory/2744-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2744-12-0x0000000000270000-0x0000000000284000-memory.dmp

Filesize
80KB

Download
memory/2744-6-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2744-4-0x0000000000870000-0x0000000000B73000-memory.dmp

Filesize
3.0MB

Download
memory/2744-3-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

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