formbook | 36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97

Analysis

max time kernel
150s
max time network
131s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
24-09-2024 18:04

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General

Target

36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe
Size

744KB
MD5

1f3a6997ed55ef6be6beccfc1996e011
SHA1

e79c2dde745697bace3bc0efceb136b4796b61a0
SHA256

36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97
SHA512

75a895a1e52929af7c3799ac4a609989246659c2e3cf9dc076bc873d089dbd47219eeb8ba4fdcb82c8fe5d1215dbd0f59eab69b43afe782e8268b140a5cdcb18
SSDEEP

12288:v6Wq4aaE6KwyF5L0Y2D1PqLRMiO8RxrhwK9kNr2rReqSHmZBGtA/q80okL3Rf:tthEVaPqLRlO8VCx2NeqlTOt

Score

10^/10

formbook c89p discovery rat spyware stealer trojan upx

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

c89p

Decoy

ftersaleb.top

dcustomdesgins.net

ostbet2024.live

rhgtrdjdjytkyhretrdjfytd.buzz

atauniversity.tech

idoctor365.net

x-design-courses-29670.bond

ellowold-pc.top

ransportationmmsytpro.top

areerfest.xyz

artiresbah-in.today

ijie.pro

torehousestudio.info

69-11-luxury-watches.shop

earing-tests-44243.bond

hits.shop

hzl9.bond

lood-test-jp-1.bond

livialiving.online

usymomsmakingmoney.online

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/1604-4-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/1604-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2768-14-0x00000000000D0000-0x00000000000FF000-memory.dmp	formbook

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2252-6-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2252 set thread context of 1604	2252	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe	30
PID 1604 set thread context of 1152	1604	svchost.exe	20
PID 2768 set thread context of 1152	2768	cmstp.exe	20

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2252-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/2252-6-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

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	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmstp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
1604	svchost.exe
1604	svchost.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe
2768	cmstp.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2252	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe
1604	svchost.exe
1604	svchost.exe
1604	svchost.exe
2768	cmstp.exe
2768	cmstp.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1604	svchost.exe
Token: SeDebugPrivilege	2768	cmstp.exe

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2252	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe
2252	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe
1152	Explorer.EXE
1152	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2252	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe
2252	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 1604	2252	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe	30
PID 2252 wrote to memory of 1604	2252	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe	30
PID 2252 wrote to memory of 1604	2252	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe	30
PID 2252 wrote to memory of 1604	2252	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe	30
PID 2252 wrote to memory of 1604	2252	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe	30
PID 1152 wrote to memory of 2768	1152	Explorer.EXE	62
PID 1152 wrote to memory of 2768	1152	Explorer.EXE	62
PID 1152 wrote to memory of 2768	1152	Explorer.EXE	62
PID 1152 wrote to memory of 2768	1152	Explorer.EXE	62
PID 1152 wrote to memory of 2768	1152	Explorer.EXE	62
PID 1152 wrote to memory of 2768	1152	Explorer.EXE	62
PID 1152 wrote to memory of 2768	1152	Explorer.EXE	62
PID 2768 wrote to memory of 2744	2768	cmstp.exe	64
PID 2768 wrote to memory of 2744	2768	cmstp.exe	64
PID 2768 wrote to memory of 2744	2768	cmstp.exe	64
PID 2768 wrote to memory of 2744	2768	cmstp.exe	64

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1152
- C:\Users\Admin\AppData\Local\Temp\36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe
  "C:\Users\Admin\AppData\Local\Temp\36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.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:2252
- - C:\Windows\SysWOW64\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1604
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2196
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2372
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2396
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2420
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2688
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2920
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:1652
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2444
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2888
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:3056
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2168
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2700
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:320
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2012
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2152
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2748
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2756
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2844
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2824
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2832
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2856
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2944
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2760
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2216
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2732
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2936
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2740
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2820
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2616
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2848
- C:\Windows\SysWOW64\autoconv.exe
  "C:\Windows\SysWOW64\autoconv.exe"
  2⤵
  PID:2296
- C:\Windows\SysWOW64\cmstp.exe
  "C:\Windows\SysWOW64\cmstp.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:2768
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\SysWOW64\svchost.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2744

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

memory/1152-11-0x0000000004D50000-0x0000000004E02000-memory.dmp

Filesize
712KB

Download
memory/1152-21-0x00000000051E0000-0x00000000052CE000-memory.dmp

Filesize
952KB

Download
memory/1152-15-0x0000000004D50000-0x0000000004E02000-memory.dmp

Filesize
712KB

Download
memory/1604-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1604-7-0x0000000000A00000-0x0000000000D03000-memory.dmp

Filesize
3.0MB

Download
memory/1604-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/1604-10-0x0000000000190000-0x00000000001A4000-memory.dmp

Filesize
80KB

Download
memory/2252-6-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2252-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2252-3-0x0000000003840000-0x0000000003C40000-memory.dmp

Filesize
4.0MB

Download
memory/2768-13-0x0000000000790000-0x00000000007A8000-memory.dmp

Filesize
96KB

Download
memory/2768-12-0x0000000000790000-0x00000000007A8000-memory.dmp

Filesize
96KB

Download
memory/2768-14-0x00000000000D0000-0x00000000000FF000-memory.dmp

Filesize
188KB

Download