formbook | 1e6c099087c8a69c5f047ac1d9c8939fa5d41bbe5ac08ad4a4ae17789f988baf

General

Target

Shipment details.exe
Size

272KB
MD5

3cd78dd1d589491459b6e90fdb38eecd
SHA1

56f24ebba94d3b28a564cb237f1d770567a141e7
SHA256

63b8a8aac85edd637c8cfe100dd59b63e9c53586b15ef5a7898152e3aa34ce88
SHA512

984bdf2a39e75ec7b4139f3cf61045b9102226fd8d5bdb879693ac601a0766293627349a5fcee63701fc891d1e4825186dcba1d4a6748b638c3617c750caba25
SSDEEP

6144:JwwhwyeV4xYkxBcgzm4dcsLGK1JcNqv5pYHRy9UXyi6lPZ:J0atxBaAFHCqw89UCZlPZ

Score

10^/10

formbook uz persistence rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

3.7

Campaign

uz

Decoy

cryptofintech.biz

medicinadador.com

xn--w1y2qt9iinqbmhmkn.com

taylorraehaupt.com

kezhai.top

usadevfun.com

micklekids.com

zitxrp.men

blchrs.com

specifichealthy.com

jzdfxy.com

jisheng0536.com

kybosystems.com

zgbtdzh.com

momsdrycleanerservice.com

choigaidep3.net

shunyiweiye.com

techmicale.com

aiarely.info

antbohol.com

Signatures

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

Formbook payload 2 IoCs

rat

Processes:

resource	yara_rule
behavioral2/memory/4088-3-0x0000000000400000-0x000000000042A000-memory.dmp	formbook
behavioral2/memory/4088-6-0x0000000000400000-0x000000000042A000-memory.dmp	formbook

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	chkdsk.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\UNSHZLBPV6K = "C:\\Program Files (x86)\\Jsral2\\3f6hzopxdzly.exe"	chkdsk.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 3 IoCs

Processes:

Shipment details.exeShipment details.exechkdsk.exe

description	pid	process	target process
PID 1436 set thread context of 4088	1436	Shipment details.exe	Shipment details.exe
PID 4088 set thread context of 3448	4088	Shipment details.exe	Explorer.EXE
PID 3984 set thread context of 3448	3984	chkdsk.exe	Explorer.EXE

Drops file in Program Files directory 1 IoCs

Processes:

chkdsk.exe

description ioc process

File opened for modification C:\Program Files (x86)\Jsral2\3f6hzopxdzly.exe chkdsk.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
File opened for modification	C:\Program Files (x86)\Jsral2\3f6hzopxdzly.exe	chkdsk.exe

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

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

Processes:

chkdsk.exe

description	ioc	process
Key created	\Registry\User\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	chkdsk.exe

Suspicious behavior: EnumeratesProcesses 56 IoCs

Processes:

Shipment details.exechkdsk.exe

pid	process
4088	Shipment details.exe
4088	Shipment details.exe
4088	Shipment details.exe
4088	Shipment details.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe
3984	chkdsk.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

Shipment details.exechkdsk.exe

pid process

4088 Shipment details.exe
4088 Shipment details.exe
4088 Shipment details.exe
3984 chkdsk.exe
3984 chkdsk.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

Processes:

Shipment details.exeShipment details.exechkdsk.exeExplorer.EXE

description	pid	process
Token: SeDebugPrivilege	1436	Shipment details.exe
Token: SeDebugPrivilege	4088	Shipment details.exe
Token: SeDebugPrivilege	3984	chkdsk.exe
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE
Token: SeShutdownPrivilege	3448	Explorer.EXE
Token: SeCreatePagefilePrivilege	3448	Explorer.EXE

Suspicious use of UnmapMainImage 1 IoCs

Processes:

Explorer.EXE

pid process

3448 Explorer.EXE

pid	process
3448	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

Shipment details.exeExplorer.EXEchkdsk.exe

description	pid	process	target process
PID 1436 wrote to memory of 4088	1436	Shipment details.exe	Shipment details.exe
PID 1436 wrote to memory of 4088	1436	Shipment details.exe	Shipment details.exe
PID 1436 wrote to memory of 4088	1436	Shipment details.exe	Shipment details.exe
PID 1436 wrote to memory of 4088	1436	Shipment details.exe	Shipment details.exe
PID 1436 wrote to memory of 4088	1436	Shipment details.exe	Shipment details.exe
PID 1436 wrote to memory of 4088	1436	Shipment details.exe	Shipment details.exe
PID 3448 wrote to memory of 3984	3448	Explorer.EXE	chkdsk.exe
PID 3448 wrote to memory of 3984	3448	Explorer.EXE	chkdsk.exe
PID 3448 wrote to memory of 3984	3448	Explorer.EXE	chkdsk.exe
PID 3984 wrote to memory of 1572	3984	chkdsk.exe	cmd.exe
PID 3984 wrote to memory of 1572	3984	chkdsk.exe	cmd.exe
PID 3984 wrote to memory of 1572	3984	chkdsk.exe	cmd.exe
PID 3984 wrote to memory of 404	3984	chkdsk.exe	cmd.exe
PID 3984 wrote to memory of 404	3984	chkdsk.exe	cmd.exe
PID 3984 wrote to memory of 404	3984	chkdsk.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3448

C:\Users\Admin\AppData\Local\Temp\Shipment details.exe
"C:\Users\Admin\AppData\Local\Temp\Shipment details.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1436

C:\Users\Admin\AppData\Local\Temp\Shipment details.exe
"C:\Users\Admin\AppData\Local\Temp\Shipment details.exe"
3⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
PID:4088

C:\Windows\SysWOW64\chkdsk.exe
"C:\Windows\SysWOW64\chkdsk.exe"
2⤵
- Adds policy Run key to start application
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3984

C:\Windows\SysWOW64\cmd.exe
/c del "C:\Users\Admin\AppData\Local\Temp\Shipment details.exe"
3⤵
PID:1572

C:\Windows\SysWOW64\cmd.exe
/c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
3⤵
PID:404

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

2

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\DB1
Filesize
46KB

MD5
8f5942354d3809f865f9767eddf51314

SHA1
20be11c0d42fc0cef53931ea9152b55082d1a11e

SHA256
776ecf8411b1b0167bea724409ac9d3f8479973df223ecc6e60e3302b3b2b8ea

SHA512
fde8dfae8a862cf106b0cb55e02d73e4e4c0527c744c20886681245c8160287f722612a6de9d0046ed1156b1771229c8950b9ac036b39c988d75aa20b7bac218

Download Submit
C:\Users\Admin\AppData\Roaming\L3P9O322\L3Plogim.jpeg
Filesize
82KB

MD5
4aaae6b43a38fa7da8d138fc9ec11d98

SHA1
563b75750bb9520cc375a621db8852f09bdf0542

SHA256
3e6b2e9a032f4a58c7f8ed6c1e0f039f119eb57ce3497187bb24ece4329c389b

SHA512
8d005acf69cb35bc7e8b85781079a4523b72170e5961c2780b143f68174e28f0516cd71f9674485d10f76e82ce9092426b80c7b7791239ff4200b5e4b1eeb3b1

Download Submit
C:\Users\Admin\AppData\Roaming\L3P9O322\L3Plogrg.ini
Filesize
38B

MD5
4aadf49fed30e4c9b3fe4a3dd6445ebe

SHA1
1e332822167c6f351b99615eada2c30a538ff037

SHA256
75034beb7bded9aeab5748f4592b9e1419256caec474065d43e531ec5cc21c56

SHA512
eb5b3908d5e7b43ba02165e092f05578f45f15a148b4c3769036aa542c23a0f7cd2bc2770cf4119a7e437de3f681d9e398511f69f66824c516d9b451bb95f945

Download Submit
C:\Users\Admin\AppData\Roaming\L3P9O322\L3Plogri.ini
Filesize
40B

MD5
d63a82e5d81e02e399090af26db0b9cb

SHA1
91d0014c8f54743bba141fd60c9d963f869d76c9

SHA256
eaece2eba6310253249603033c744dd5914089b0bb26bde6685ec9813611baae

SHA512
38afb05016d8f3c69d246321573997aaac8a51c34e61749a02bf5e8b2b56b94d9544d65801511044e1495906a86dc2100f2e20ff4fcbed09e01904cc780fdbad

Download Submit
C:\Users\Admin\AppData\Roaming\L3P9O322\L3Plogrv.ini
Filesize
872B

MD5
bbc41c78bae6c71e63cb544a6a284d94

SHA1
33f2c1d9fa0e9c99b80bc2500621e95af38b1f9a

SHA256
ee83c6bcea9353c74bfc0a7e739f3c4a765ace894470e09cdcdebba700b8d4cb

SHA512
0aea424b57adae3e14ad6491cab585f554b4dffe601b5a17bad6ee6177d2f0f995e419cde576e2d1782b9bddc0661aada11a2c9f1454ae625d9e3223635ec9f4

Download Submit
memory/1436-2-0x00000000751E0000-0x0000000075791000-memory.dmp

Filesize
5.7MB

Download
memory/1436-8-0x00000000751E2000-0x00000000751E3000-memory.dmp

Filesize
4KB

Download
memory/1436-11-0x00000000751E0000-0x0000000075791000-memory.dmp

Filesize
5.7MB

Download
memory/1436-0-0x00000000751E2000-0x00000000751E3000-memory.dmp

Filesize
4KB

Download
memory/1436-1-0x00000000751E0000-0x0000000075791000-memory.dmp

Filesize
5.7MB

Download
memory/3448-21-0x0000000002A30000-0x0000000002AD1000-memory.dmp

Filesize
644KB

Download
memory/3448-9-0x00000000088F0000-0x00000000089F0000-memory.dmp

Filesize
1024KB

Download
memory/3448-15-0x00000000088F0000-0x00000000089F0000-memory.dmp

Filesize
1024KB

Download
memory/3448-17-0x0000000002A30000-0x0000000002AD1000-memory.dmp

Filesize
644KB

Download
memory/3448-18-0x0000000002A30000-0x0000000002AD1000-memory.dmp

Filesize
644KB

Download
memory/3984-12-0x0000000000490000-0x000000000049A000-memory.dmp

Filesize
40KB

Download
memory/3984-13-0x0000000000490000-0x000000000049A000-memory.dmp

Filesize
40KB

Download
memory/4088-6-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download
memory/4088-7-0x00000000012B0000-0x00000000012C4000-memory.dmp

Filesize
80KB

Download
memory/4088-4-0x0000000001410000-0x000000000175A000-memory.dmp

Filesize
3.3MB

Download
memory/4088-3-0x0000000000400000-0x000000000042A000-memory.dmp

Filesize
168KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

Replay Monitor

Loading Replay Monitor...

Downloads