formbook | 8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee

Analysis

max time kernel
149s
max time network
150s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
22-06-2024 01:21

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General

Target

8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe
Size

1.1MB
MD5

45559d099e47318b998071ce98c83ac9
SHA1

86556702141afe1888663f3aefd4eaeae8800579
SHA256

8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee
SHA512

513a69fd7677e5abeefc8514c49a2daf2a073b7a1bd1396997eae31342294c8eb7bfbfad69a7f357ec624c15150d9a4d5c71f8ce44b15827bfcdb13e502379bd
SSDEEP

24576:OAHnh+eWsN3skA4RV1Hom2KXMmHazRgNMfM6hkjVQPn75:5h+ZkldoPK8YazqNMk6h2VQP9

Score

10^/10

formbook rn94 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

rn94

Decoy

st68v.xyz

conciergenotary.net

qwechaotk.top

rtpdonatoto29.xyz

8ad.xyz

powermove.top

cameras-30514.bond

vanguardcoffee.shop

umoe53fxc1bsujv.buzz

consultoriamax.net

hplxx.com

ndu.wtf

yzh478c.xyz

bigbrown999.site

xiake07.asia

resdai.xyz

the35678.shop

ba6rf.rest

ceo688.com

phimxhot.xyz

Signatures

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

Formbook payload 4 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2672-30-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2672-36-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2672-39-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2448-44-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Drops startup file 1 IoCs

Processes:

name.exe

description ioc process

File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\name.vbs name.exe
Executes dropped EXE 1 IoCs

Processes:

name.exe

pid process

2368 name.exe
Loads dropped DLL 1 IoCs

Processes:

8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe

pid process

3068 8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.

Processes:

resource yara_rule

\Users\Admin\AppData\Local\directory\name.exe autoit_exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\name.vbs	name.exe

pid	process
2368	name.exe

resource	yara_rule
\Users\Admin\AppData\Local\directory\name.exe	autoit_exe

Suspicious use of SetThreadContext 4 IoCs

Processes:

name.exesvchost.exechkdsk.exe

description	pid	process	target process
PID 2368 set thread context of 2672	2368	name.exe	svchost.exe
PID 2672 set thread context of 1188	2672	svchost.exe	Explorer.EXE
PID 2672 set thread context of 1188	2672	svchost.exe	Explorer.EXE
PID 2448 set thread context of 1188	2448	chkdsk.exe	Explorer.EXE

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

chkdsk.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier chkdsk.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\Identifier	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 31 IoCs

Processes:

svchost.exechkdsk.exe

pid	process
2672	svchost.exe
2672	svchost.exe
2672	svchost.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe
2448	chkdsk.exe

Suspicious behavior: MapViewOfSection 7 IoCs

Processes:

name.exesvchost.exechkdsk.exe

pid process

2368 name.exe
2672 svchost.exe
2672 svchost.exe
2672 svchost.exe
2672 svchost.exe
2448 chkdsk.exe
2448 chkdsk.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

svchost.exechkdsk.exe

description pid process

Token: SeDebugPrivilege 2672 svchost.exe
Token: SeDebugPrivilege 2448 chkdsk.exe

pid	process
2368	name.exe
2672	svchost.exe
2672	svchost.exe
2672	svchost.exe
2672	svchost.exe
2448	chkdsk.exe
2448	chkdsk.exe

description	pid	process
Token: SeDebugPrivilege	2672	svchost.exe
Token: SeDebugPrivilege	2448	chkdsk.exe

Suspicious use of FindShellTrayWindow 6 IoCs

Processes:

8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exename.exeExplorer.EXE

pid	process
3068	8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe
3068	8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe
2368	name.exe
2368	name.exe
1188	Explorer.EXE
1188	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

Processes:

8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exename.exe

pid process

3068 8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe
3068 8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe
2368 name.exe
2368 name.exe

Suspicious use of WriteProcessMemory 17 IoCs

Processes:

8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exename.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 3068 wrote to memory of 2368	3068	8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe	name.exe
PID 3068 wrote to memory of 2368	3068	8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe	name.exe
PID 3068 wrote to memory of 2368	3068	8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe	name.exe
PID 3068 wrote to memory of 2368	3068	8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe	name.exe
PID 2368 wrote to memory of 2672	2368	name.exe	svchost.exe
PID 2368 wrote to memory of 2672	2368	name.exe	svchost.exe
PID 2368 wrote to memory of 2672	2368	name.exe	svchost.exe
PID 2368 wrote to memory of 2672	2368	name.exe	svchost.exe
PID 2368 wrote to memory of 2672	2368	name.exe	svchost.exe
PID 1188 wrote to memory of 2448	1188	Explorer.EXE	chkdsk.exe
PID 1188 wrote to memory of 2448	1188	Explorer.EXE	chkdsk.exe
PID 1188 wrote to memory of 2448	1188	Explorer.EXE	chkdsk.exe
PID 1188 wrote to memory of 2448	1188	Explorer.EXE	chkdsk.exe
PID 2448 wrote to memory of 2120	2448	chkdsk.exe	cmd.exe
PID 2448 wrote to memory of 2120	2448	chkdsk.exe	cmd.exe
PID 2448 wrote to memory of 2120	2448	chkdsk.exe	cmd.exe
PID 2448 wrote to memory of 2120	2448	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1188

C:\Users\Admin\AppData\Local\Temp\8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe
"C:\Users\Admin\AppData\Local\Temp\8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe"
2⤵
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:3068

C:\Users\Admin\AppData\Local\directory\name.exe
"C:\Users\Admin\AppData\Local\Temp\8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe"
3⤵
- Drops startup file
- Executes dropped EXE
- Suspicious use of SetThreadContext
- 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\8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee.exe"
4⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:2672

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Suspicious use of SetThreadContext
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2448

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Windows\SysWOW64\svchost.exe"
3⤵
PID:2120

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\croc
MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
C:\Users\Admin\AppData\Local\Temp\plainstones
Filesize
28KB

MD5
9eabb5a496a22a398b67c79a80466906

SHA1
cbfdce5ab1cdb43dc9104287b6e7b502777563d5

SHA256
ffa491b2a80ed4d7d4e167f548ff891f8a90a8ed9e5d503cfe868fc05c16065c

SHA512
e87a88aaeb55c62dad4aff9249ae18021918d872bd75629c5a681397f8107e97b2f4dd35ae5871c0bc6d78adb87a3b64fd25024034362adf59d14ae4b8a20b32

Download Submit
\Users\Admin\AppData\Local\directory\name.exe
Filesize
1.1MB

MD5
45559d099e47318b998071ce98c83ac9

SHA1
86556702141afe1888663f3aefd4eaeae8800579

SHA256
8973790929fbbd34ff29fb50b887dec10d68f8fcefc5050d6ec78dc88a64b5ee

SHA512
513a69fd7677e5abeefc8514c49a2daf2a073b7a1bd1396997eae31342294c8eb7bfbfad69a7f357ec624c15150d9a4d5c71f8ce44b15827bfcdb13e502379bd

Download Submit
memory/1188-41-0x0000000006DF0000-0x0000000006F25000-memory.dmp

Filesize
1.2MB

Download
memory/1188-32-0x00000000001D0000-0x00000000002D0000-memory.dmp

Filesize
1024KB

Download
memory/1188-54-0x0000000004F10000-0x0000000004FEE000-memory.dmp

Filesize
888KB

Download
memory/1188-35-0x0000000005250000-0x000000000532B000-memory.dmp

Filesize
876KB

Download
memory/1188-50-0x0000000004F10000-0x0000000004FEE000-memory.dmp

Filesize
888KB

Download
memory/1188-49-0x0000000004F10000-0x0000000004FEE000-memory.dmp

Filesize
888KB

Download
memory/1188-46-0x0000000006DF0000-0x0000000006F25000-memory.dmp

Filesize
1.2MB

Download
memory/1188-38-0x0000000005250000-0x000000000532B000-memory.dmp

Filesize
876KB

Download
memory/2448-42-0x0000000000850000-0x0000000000857000-memory.dmp

Filesize
28KB

Download
memory/2448-44-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2448-43-0x0000000000850000-0x0000000000857000-memory.dmp

Filesize
28KB

Download
memory/2672-34-0x00000000001B0000-0x00000000001C5000-memory.dmp

Filesize
84KB

Download
memory/2672-39-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2672-40-0x00000000001F0000-0x0000000000205000-memory.dmp

Filesize
84KB

Download
memory/2672-33-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Filesize
3.0MB

Download
memory/2672-30-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2672-36-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/3068-10-0x0000000000130000-0x0000000000134000-memory.dmp

Filesize
16KB

Download