formbook | 36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97

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/2324-4-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2324-9-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2324-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook

AutoIT Executable 1 IoCs

AutoIT scripts compiled to PE executables.

resource	yara_rule
behavioral1/memory/2368-6-0x0000000000400000-0x00000000004C2000-memory.dmp	autoit_exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2368 set thread context of 2324	2368	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe	30
PID 2324 set thread context of 1208	2324	svchost.exe	21
PID 2324 set thread context of 1208	2324	svchost.exe	21

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2368-0-0x0000000000400000-0x00000000004C2000-memory.dmp	upx
behavioral1/memory/2368-6-0x0000000000400000-0x00000000004C2000-memory.dmp	upx

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2300	1868	WerFault.exe	32

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

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2324	svchost.exe
2324	svchost.exe
2324	svchost.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2368	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe
2324	svchost.exe
2324	svchost.exe
2324	svchost.exe
2324	svchost.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2324	svchost.exe
Token: SeShutdownPrivilege	1208	Explorer.EXE

Suspicious use of FindShellTrayWindow 4 IoCs

pid	Process
2368	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe
2368	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe
1208	Explorer.EXE
1208	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
2368	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe
2368	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2368 wrote to memory of 2324	2368	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe	30
PID 2368 wrote to memory of 2324	2368	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe	30
PID 2368 wrote to memory of 2324	2368	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe	30
PID 2368 wrote to memory of 2324	2368	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe	30
PID 2368 wrote to memory of 2324	2368	36421bdf90ea83d4e677a54710f4d35e2bc15a1222c4abb17e78996029f53c97.exe	30
PID 1208 wrote to memory of 1868	1208	Explorer.EXE	32
PID 1208 wrote to memory of 1868	1208	Explorer.EXE	32
PID 1208 wrote to memory of 1868	1208	Explorer.EXE	32
PID 1208 wrote to memory of 1868	1208	Explorer.EXE	32
PID 1208 wrote to memory of 1868	1208	Explorer.EXE	32
PID 1208 wrote to memory of 1868	1208	Explorer.EXE	32
PID 1208 wrote to memory of 1868	1208	Explorer.EXE	32
PID 1868 wrote to memory of 2300	1868	msiexec.exe	33
PID 1868 wrote to memory of 2300	1868	msiexec.exe	33
PID 1868 wrote to memory of 2300	1868	msiexec.exe	33
PID 1868 wrote to memory of 2300	1868	msiexec.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1208
- 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:2368
- - 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:2324
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1868
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1868 -s 268
    3⤵
    - Program crash
    PID:2300

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/1208-11-0x0000000004F20000-0x00000000050B7000-memory.dmp

Filesize
1.6MB

Download
memory/1208-22-0x00000000050C0000-0x000000000522B000-memory.dmp

Filesize
1.4MB

Download
memory/1208-16-0x0000000004F20000-0x00000000050B7000-memory.dmp

Filesize
1.6MB

Download
memory/1208-15-0x00000000050C0000-0x000000000522B000-memory.dmp

Filesize
1.4MB

Download
memory/1868-18-0x00000000005C0000-0x00000000005D4000-memory.dmp

Filesize
80KB

Download
memory/1868-17-0x00000000005C0000-0x00000000005D4000-memory.dmp

Filesize
80KB

Download
memory/1868-20-0x00000000005C0000-0x00000000005D4000-memory.dmp

Filesize
80KB

Download
memory/2324-10-0x0000000000110000-0x0000000000124000-memory.dmp

Filesize
80KB

Download
memory/2324-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2324-7-0x0000000000770000-0x0000000000A73000-memory.dmp

Filesize
3.0MB

Download
memory/2324-14-0x00000000001E0000-0x00000000001F4000-memory.dmp

Filesize
80KB

Download
memory/2324-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2324-4-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2368-6-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2368-0-0x0000000000400000-0x00000000004C2000-memory.dmp

Filesize
776KB

Download
memory/2368-3-0x0000000003150000-0x0000000003550000-memory.dmp

Filesize
4.0MB

Download

Analysis

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