formbook | da742afc42369db1320628ca59e4f30184b456dee53c32b1b18b6b76104a4405

General

Target

invoice Ceylan 49.600€.exe
Size

352KB
MD5

74f87a533471eaa7719df1d9b0593c2a
SHA1

77a20802e1e2db283ddf605a818372a72b0d8e26
SHA256

851b20d33b8210f3d20ab4694011a0858eeb745e248a768c1e4c214efb59464b
SHA512

a65587fa689531ff0d9da0c24ed9fb01adc986353491b6cb65773c66c7d5bf3773f8ae7c87ca4e2485da442c815722cdf5633e425693a8ace5f888744c868438
SSDEEP

6144:uHKk9IMkhBBLK5F//cVXX2fbi5PQAWH8m11H1OiBSb5iUmkyvYbMNXTUEAp4Ds:uqsSBe3aW+oAb4bHqkTk4YQdUEA

Score

10^/10

formbook cl8k discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cl8k

Decoy

georgiaprfirm.com

rhinosafeinc.com

gandgpublishing.com

angelyangelarquitectos.com

formation-gallery.com

orangecountyipadrepair.com

aplearn.info

freshlucky.com

wrapfestival.com

zerosarentals.com

ff7a9vlt7.xyz

teachbing.com

mukos.xyz

baojianma.com

dermalaf.com

hannahandpatrick2022.com

yesilnoktam.xyz

theroyalhotels-kw.com

reisebazaar.online

senergypallet.com

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral1/memory/2820-16-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2820-20-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2820-25-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2364 set thread context of 2820	2364	invoice Ceylan 49.600€.exe	34
PID 2820 set thread context of 1256	2820	invoice Ceylan 49.600€.exe	21
PID 2820 set thread context of 1256	2820	invoice Ceylan 49.600€.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 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	invoice Ceylan 49.600€.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2724	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2364	invoice Ceylan 49.600€.exe
2364	invoice Ceylan 49.600€.exe
2820	invoice Ceylan 49.600€.exe
2820	invoice Ceylan 49.600€.exe
2820	invoice Ceylan 49.600€.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
2820	invoice Ceylan 49.600€.exe
2820	invoice Ceylan 49.600€.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2364	invoice Ceylan 49.600€.exe
Token: SeDebugPrivilege	2820	invoice Ceylan 49.600€.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 2724	2364	invoice Ceylan 49.600€.exe	31
PID 2364 wrote to memory of 2724	2364	invoice Ceylan 49.600€.exe	31
PID 2364 wrote to memory of 2724	2364	invoice Ceylan 49.600€.exe	31
PID 2364 wrote to memory of 2724	2364	invoice Ceylan 49.600€.exe	31
PID 2364 wrote to memory of 2676	2364	invoice Ceylan 49.600€.exe	33
PID 2364 wrote to memory of 2676	2364	invoice Ceylan 49.600€.exe	33
PID 2364 wrote to memory of 2676	2364	invoice Ceylan 49.600€.exe	33
PID 2364 wrote to memory of 2676	2364	invoice Ceylan 49.600€.exe	33
PID 2364 wrote to memory of 2820	2364	invoice Ceylan 49.600€.exe	34
PID 2364 wrote to memory of 2820	2364	invoice Ceylan 49.600€.exe	34
PID 2364 wrote to memory of 2820	2364	invoice Ceylan 49.600€.exe	34
PID 2364 wrote to memory of 2820	2364	invoice Ceylan 49.600€.exe	34
PID 2364 wrote to memory of 2820	2364	invoice Ceylan 49.600€.exe	34
PID 2364 wrote to memory of 2820	2364	invoice Ceylan 49.600€.exe	34
PID 2364 wrote to memory of 2820	2364	invoice Ceylan 49.600€.exe	34

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1256
- C:\Users\Admin\AppData\Local\Temp\invoice Ceylan 49.600€.exe
  "C:\Users\Admin\AppData\Local\Temp\invoice Ceylan 49.600€.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2364
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\sIYfcmrdwEC" /XML "C:\Users\Admin\AppData\Local\Temp\tmp68E1.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2724
- - C:\Users\Admin\AppData\Local\Temp\invoice Ceylan 49.600€.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice Ceylan 49.600€.exe"
    3⤵
    PID:2676
- - C:\Users\Admin\AppData\Local\Temp\invoice Ceylan 49.600€.exe
    "C:\Users\Admin\AppData\Local\Temp\invoice Ceylan 49.600€.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

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

Loading Replay Monitor...

Downloads

memory/1256-29-0x0000000006430000-0x00000000065BB000-memory.dmp

Filesize
1.5MB

Download
memory/1256-22-0x00000000062F0000-0x0000000006421000-memory.dmp

Filesize
1.2MB

Download
memory/1256-27-0x00000000062F0000-0x0000000006421000-memory.dmp

Filesize
1.2MB

Download
memory/1256-19-0x0000000000010000-0x0000000000020000-memory.dmp

Filesize
64KB

Download
memory/1256-28-0x0000000006430000-0x00000000065BB000-memory.dmp

Filesize
1.5MB

Download
memory/2364-3-0x0000000000460000-0x000000000046A000-memory.dmp

Filesize
40KB

Download
memory/2364-6-0x0000000004AF0000-0x0000000004B48000-memory.dmp

Filesize
352KB

Download
memory/2364-5-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/2364-4-0x000000007470E000-0x000000007470F000-memory.dmp

Filesize
4KB

Download
memory/2364-2-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/2364-0-0x000000007470E000-0x000000007470F000-memory.dmp

Filesize
4KB

Download
memory/2364-1-0x0000000000A00000-0x0000000000A5E000-memory.dmp

Filesize
376KB

Download
memory/2364-23-0x0000000074700000-0x0000000074DEE000-memory.dmp

Filesize
6.9MB

Download
memory/2820-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2820-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2820-17-0x0000000000A60000-0x0000000000D63000-memory.dmp

Filesize
3.0MB

Download
memory/2820-21-0x0000000000360000-0x0000000000374000-memory.dmp

Filesize
80KB

Download
memory/2820-25-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2820-26-0x00000000003C0000-0x00000000003D4000-memory.dmp

Filesize
80KB

Download
memory/2820-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2820-16-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2820-12-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads