formbook | 699fbd0e90c9d904ccde9fa7326ca0139c169b268a4d698dfa9b82e68950f7b2

Analysis

max time kernel
148s
max time network
140s
platform
windows7_x64
resource
win7-20241023-en
resource tags

arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
submitted
24-12-2024 09:51

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General

Target

jestyyfre44321.exe
Size

1.1MB
MD5

c2d4e5290155193ed854fc6d27ec83a4
SHA1

de83fd85e5496b9ccc8f56bd162d27381835c1af
SHA256

e4c4e4111a17d0130da8cfb7694900d1d7f16bfb74ab45eff550e6319d88a602
SHA512

e873f5dc3e318be701bbcdc55f2a61060e72a54c58c17fc2b339b9faf5b9b52f764241d7c6f1c5758884fa76cb1257c605ea2cc1c9d085e99fd51fd457e65e73
SSDEEP

24576:UAOcZXcxP6P4C6oV5Ogn+pN6k77rvyOMF5:CH9C6qX+pN6kDbE5

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 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2672-93-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2420-96-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Executes dropped EXE 1 IoCs

pid	Process
2716	isab.pif

Loads dropped DLL 4 IoCs

pid	Process
2536	jestyyfre44321.exe
2536	jestyyfre44321.exe
2536	jestyyfre44321.exe
2536	jestyyfre44321.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2716 set thread context of 2672	2716	isab.pif	32
PID 2672 set thread context of 1128	2672	RegSvcs.exe	20
PID 2420 set thread context of 1128	2420	wininit.exe	20

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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	jestyyfre44321.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	isab.pif
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wininit.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2672	RegSvcs.exe
2672	RegSvcs.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe
2420	wininit.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2672	RegSvcs.exe
2672	RegSvcs.exe
2672	RegSvcs.exe
2420	wininit.exe
2420	wininit.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2672	RegSvcs.exe
Token: SeDebugPrivilege	2420	wininit.exe

Suspicious use of WriteProcessMemory 32 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 2716	2536	jestyyfre44321.exe	30
PID 2536 wrote to memory of 2716	2536	jestyyfre44321.exe	30
PID 2536 wrote to memory of 2716	2536	jestyyfre44321.exe	30
PID 2536 wrote to memory of 2716	2536	jestyyfre44321.exe	30
PID 2536 wrote to memory of 2716	2536	jestyyfre44321.exe	30
PID 2536 wrote to memory of 2716	2536	jestyyfre44321.exe	30
PID 2536 wrote to memory of 2716	2536	jestyyfre44321.exe	30
PID 2716 wrote to memory of 2644	2716	isab.pif	31
PID 2716 wrote to memory of 2644	2716	isab.pif	31
PID 2716 wrote to memory of 2644	2716	isab.pif	31
PID 2716 wrote to memory of 2644	2716	isab.pif	31
PID 2716 wrote to memory of 2644	2716	isab.pif	31
PID 2716 wrote to memory of 2644	2716	isab.pif	31
PID 2716 wrote to memory of 2644	2716	isab.pif	31
PID 2716 wrote to memory of 2672	2716	isab.pif	32
PID 2716 wrote to memory of 2672	2716	isab.pif	32
PID 2716 wrote to memory of 2672	2716	isab.pif	32
PID 2716 wrote to memory of 2672	2716	isab.pif	32
PID 2716 wrote to memory of 2672	2716	isab.pif	32
PID 2716 wrote to memory of 2672	2716	isab.pif	32
PID 2716 wrote to memory of 2672	2716	isab.pif	32
PID 2716 wrote to memory of 2672	2716	isab.pif	32
PID 2716 wrote to memory of 2672	2716	isab.pif	32
PID 2716 wrote to memory of 2672	2716	isab.pif	32
PID 1128 wrote to memory of 2420	1128	Explorer.EXE	33
PID 1128 wrote to memory of 2420	1128	Explorer.EXE	33
PID 1128 wrote to memory of 2420	1128	Explorer.EXE	33
PID 1128 wrote to memory of 2420	1128	Explorer.EXE	33
PID 2420 wrote to memory of 2364	2420	wininit.exe	35
PID 2420 wrote to memory of 2364	2420	wininit.exe	35
PID 2420 wrote to memory of 2364	2420	wininit.exe	35
PID 2420 wrote to memory of 2364	2420	wininit.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1128
- C:\Users\Admin\AppData\Local\Temp\jestyyfre44321.exe
  "C:\Users\Admin\AppData\Local\Temp\jestyyfre44321.exe"
  2⤵
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2536
- - C:\Users\Admin\9_53\isab.pif
    "C:\Users\Admin\9_53\isab.pif" telx.ogt
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2716
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      4⤵
      PID:2644
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
      4⤵
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2672
- C:\Windows\SysWOW64\wininit.exe
  "C:\Windows\SysWOW64\wininit.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:2420
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2364

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

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Downloads

C:\Users\Admin\9_53\aoss.xls

Filesize
40KB

MD5
c54a5a90e3803c572ed12150b510f97d

SHA1
8e2f02b84fd5f6e873cf51d343fb96a531a45e45

SHA256
87cd75d6b1a5607b39e5940d9021ca9281c3d47217e597e0601f6f6d02b06bf8

SHA512
d8f5395fde12d62e94e7969b7d298f03733c56adf3139de5a6167a59c497152c384631d6da12380136b00d10119a7fdec4a53208f5152c578a71b589b8f9e776

Download Submit
C:\Users\Admin\9_53\gcvbihuje.mro

Filesize
370KB

MD5
d40060faa63c30e509e8f6c5be0dcdc4

SHA1
4ec1022751784dc6b2a8819e6d4b860d6b38d82f

SHA256
15994b50140988529c4b8c18aebabcb60fedc34b45dfdac906569bda318f3414

SHA512
1761c72937b4476c666ffb93b96bb94427068dae217fe03c021082e5a988a09e3dacfd306b6440ca90de3ce48afa2aeb85829a1e76f3ff2fc2e636180f0eb1da

Download Submit
\Users\Admin\9_53\isab.pif

Filesize
820KB

MD5
0c996fa7285452f1302d8c781bd72972

SHA1
93b2a1bce155afec134804b3a2ef6b40ac0a4178

SHA256
470588c09deb416b91666b21a15cda3fd2e8807bdf83e27e5939415651bb006f

SHA512
e8d8c61f04707af05143e1c68ffcbf38a433766096a5c87c0f6b2b8cf54f0f2d4a60e39f4b0fb5a78dfbb97a2549d7c930887021bf513abf268a4677d9231c5e

Download Submit
memory/1128-100-0x0000000005090000-0x0000000005175000-memory.dmp

Filesize
916KB

Download
memory/2420-95-0x0000000000DC0000-0x0000000000DDA000-memory.dmp

Filesize
104KB

Download
memory/2420-96-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2672-90-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2672-93-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2672-92-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2672-88-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download