formbook | 419de44087b42e1b0a3dbd07b1f58c4d70559760c555c3b26f647ce70fcc40a4

Analysis

max time kernel
149s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-12-2024 19:46

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General

Target

jetsduu7564.exe
Size

222KB
MD5

75dc2f78f5b5c89fbee266137feec698
SHA1

0b2f0dd1cd2909336a6a3f553f7c7e30e4557c1b
SHA256

ca9dc37d5af616843ef202f89a4ce2cef6fbbc3bce92456193af9cc77bea1af0
SHA512

823d6c55719ff22634fa7c3538768e5dbfe65ff9944dda228b541dbaac33d00367c2e8eb2530eb40fcdf11692e96bd5bc91d51348afe2998ef84527462b3f9b4
SSDEEP

3072:WfJSq+ytGIon9KcSMNDd7ul1JUx6edox1vva7m8f4xQ3bWoG5hlYkE83EHduo9IM:MEa0NXUM6QA9dtE8y+pct1v

Score

10^/10

formbook je14 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

je14

Decoy

innervisionbuildings.com

theenergysocialite.com

565548.com

panghr.com

onlyonesolutions.com

stjohnzone6.com

cnotes.rest

helfeb.online

xixi-s-inc.club

easilyentered.com

theshopx.store

mrclean-ac.com

miamibeachwateradventures.com

jpearce.co.uk

seseragi-bunkou.com

minimaddie.com

commbank-help-849c3.com

segohandelsonderneming.com

namthanhreal.com

fototerapi.online

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
behavioral2/memory/3380-9-0x0000000000200000-0x000000000022F000-memory.dmp	formbook
behavioral2/memory/3380-14-0x0000000000200000-0x000000000022F000-memory.dmp	formbook
behavioral2/memory/3292-20-0x0000000000F70000-0x0000000000F9F000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
2896	dufjl.exe
3380	dufjl.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2896 set thread context of 3380	2896	dufjl.exe	86
PID 3380 set thread context of 3416	3380	dufjl.exe	56
PID 3292 set thread context of 3416	3292	mstsc.exe	56

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 4 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	jetsduu7564.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	dufjl.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	mstsc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 62 IoCs

pid	Process
3380	dufjl.exe
3380	dufjl.exe
3380	dufjl.exe
3380	dufjl.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe
3292	mstsc.exe

Suspicious behavior: MapViewOfSection 7 IoCs

pid	Process
2896	dufjl.exe
2896	dufjl.exe
3380	dufjl.exe
3380	dufjl.exe
3380	dufjl.exe
3292	mstsc.exe
3292	mstsc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3380	dufjl.exe
Token: SeDebugPrivilege	3292	mstsc.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 2896	4856	jetsduu7564.exe	85
PID 4856 wrote to memory of 2896	4856	jetsduu7564.exe	85
PID 4856 wrote to memory of 2896	4856	jetsduu7564.exe	85
PID 2896 wrote to memory of 3380	2896	dufjl.exe	86
PID 2896 wrote to memory of 3380	2896	dufjl.exe	86
PID 2896 wrote to memory of 3380	2896	dufjl.exe	86
PID 2896 wrote to memory of 3380	2896	dufjl.exe	86
PID 3416 wrote to memory of 3292	3416	Explorer.EXE	87
PID 3416 wrote to memory of 3292	3416	Explorer.EXE	87
PID 3416 wrote to memory of 3292	3416	Explorer.EXE	87
PID 3292 wrote to memory of 1092	3292	mstsc.exe	89
PID 3292 wrote to memory of 1092	3292	mstsc.exe	89
PID 3292 wrote to memory of 1092	3292	mstsc.exe	89

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3416
- C:\Users\Admin\AppData\Local\Temp\jetsduu7564.exe
  "C:\Users\Admin\AppData\Local\Temp\jetsduu7564.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4856
- - C:\Users\Admin\AppData\Local\Temp\dufjl.exe
    "C:\Users\Admin\AppData\Local\Temp\dufjl.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2896
  - - C:\Users\Admin\AppData\Local\Temp\dufjl.exe
      "C:\Users\Admin\AppData\Local\Temp\dufjl.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:3380
- C:\Windows\SysWOW64\mstsc.exe
  "C:\Windows\SysWOW64\mstsc.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:3292
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\dufjl.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:1092

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\cpaswq.kj

Filesize
185KB

MD5
e2d0bcb6f272fb13c8d5f4e0fafcd7ef

SHA1
705c2f283f217983108d2d14bec2dd05ba84cb97

SHA256
cdf8be85aca508ae572693b876b9f3daacf2cf6e80c01534d04b97b61879526e

SHA512
c4583b159625f0fe32d02dfe05169f8b54aadc1169498ba6b58ec34d3056432f24cf46532a2aa0acdc717ef821963da4100feeec7083f32672b884ac91deed95

Download Submit
C:\Users\Admin\AppData\Local\Temp\dufjl.exe

Filesize
6KB

MD5
74cbafe65a6f4de0cca11172f174b1fd

SHA1
515a076a1f3e5ea4290024e8d17a01df8b7569ce

SHA256
36c72fdce14ac0b58ca33cc96891c957e819aef91e0fb9ae0ada132105326df0

SHA512
0e7bb057721a2317fabfa520a6fac65be461c8ff5f6845a15b04b8914016ab1dcc4ecdc3f7a91c3ce1d4b59b88991e7cb4e03c31a9822f8ed0d4a20a20a1ea94

Download Submit
C:\Users\Admin\AppData\Local\Temp\szvgcg.vc

Filesize
5KB

MD5
16f17c0cd30705a753aeb3a307ff26ed

SHA1
b910a46922b4e8911638d9295e83f970214df676

SHA256
9e292156b1545d54b76eee5c885fe16256cfc2d575a9f235480e66d3e5780677

SHA512
5a808bff270ebf1edaa47e702b0f6ce3987cd8d6f141d6a6a36495448d0ccf1f485a2af694588bede83f435815eb7e0245368d00e8464e43c6c4a82f110299ec

Download Submit
memory/2896-7-0x00000000013F0000-0x00000000013F2000-memory.dmp

Filesize
8KB

Download
memory/3292-20-0x0000000000F70000-0x0000000000F9F000-memory.dmp

Filesize
188KB

Download
memory/3292-17-0x0000000000890000-0x00000000009CA000-memory.dmp

Filesize
1.2MB

Download
memory/3292-19-0x0000000000890000-0x00000000009CA000-memory.dmp

Filesize
1.2MB

Download
memory/3380-9-0x0000000000200000-0x000000000022F000-memory.dmp

Filesize
188KB

Download
memory/3380-13-0x0000000000AA0000-0x0000000000DEA000-memory.dmp

Filesize
3.3MB

Download
memory/3380-15-0x0000000000720000-0x0000000000734000-memory.dmp

Filesize
80KB

Download
memory/3380-14-0x0000000000200000-0x000000000022F000-memory.dmp

Filesize
188KB

Download
memory/3416-16-0x0000000008E10000-0x0000000008FAD000-memory.dmp

Filesize
1.6MB

Download
memory/3416-21-0x0000000008E10000-0x0000000008FAD000-memory.dmp

Filesize
1.6MB

Download
memory/3416-25-0x0000000008FB0000-0x0000000009100000-memory.dmp

Filesize
1.3MB

Download
memory/3416-26-0x0000000008FB0000-0x0000000009100000-memory.dmp

Filesize
1.3MB

Download
memory/3416-28-0x0000000008FB0000-0x0000000009100000-memory.dmp

Filesize
1.3MB

Download