formbook | 68cb25467d45c312d73cbd971341766ccf0caa85b6f1e4439a0631cc97b6723b

General

Target

a0a6a1c54775713ad3e884b6bc49f2c74f393464a69175c8713221504ae6d72a.exe
Size

342KB
MD5

07ea9abe8aeda1c72f42967c7d9f475a
SHA1

5f495b957acc693e5019ee2ccb5a1f458286f67f
SHA256

a0a6a1c54775713ad3e884b6bc49f2c74f393464a69175c8713221504ae6d72a
SHA512

8cbdfc199506f980e282b93691bcf97b09d1d0617e9a533785a67f54e2ed267e0a957181deea3d958b46c48058531004a99456790cb1f24ba7455e9186fa2e53
SSDEEP

6144:wBlL/90OO8k3NWzK22YTzxAdhlpOxWe+mJ/0u4p6+zTV28BkvTXR:C/0Oe3NWh2dhoWG/0u4s+fyXR

Score

10^/10

formbook fs35 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

fs35

Decoy

latechdz.com

sdp-ploce.com

ss203.site

sm6yuy.net

needstothink.com

heginstwp.com

blueplumespirit.com

vemconferirshop.click

yorent-auto.com

eleononaly.com

medicalspacelocators.com

7law.info

imacanberra.online

bbtyss.top

onlyanfans.com

varenty.com

fappies.shop

313865.com

hongpools.com

babkacuisine.xyz

Signatures

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

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral1/memory/2668-13-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2668-17-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2684-25-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/2684-27-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Executes dropped EXE 2 IoCs

pid	Process
2744	lqhpvxmtbn.exe
2668	lqhpvxmtbn.exe

Loads dropped DLL 3 IoCs

pid	Process
1192	a0a6a1c54775713ad3e884b6bc49f2c74f393464a69175c8713221504ae6d72a.exe
1192	a0a6a1c54775713ad3e884b6bc49f2c74f393464a69175c8713221504ae6d72a.exe
2744	lqhpvxmtbn.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2744 set thread context of 2668	2744	lqhpvxmtbn.exe	29
PID 2668 set thread context of 1248	2668	lqhpvxmtbn.exe	2
PID 2684 set thread context of 1248	2684	chkdsk.exe	2

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

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

Suspicious behavior: EnumeratesProcesses 31 IoCs

pid	Process
2668	lqhpvxmtbn.exe
2668	lqhpvxmtbn.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe
2684	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1248	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2744	lqhpvxmtbn.exe
2668	lqhpvxmtbn.exe
2668	lqhpvxmtbn.exe
2668	lqhpvxmtbn.exe
2684	chkdsk.exe
2684	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2668	lqhpvxmtbn.exe
Token: SeDebugPrivilege	2684	chkdsk.exe

Suspicious use of WriteProcessMemory 17 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 2744	1192	a0a6a1c54775713ad3e884b6bc49f2c74f393464a69175c8713221504ae6d72a.exe	28
PID 1192 wrote to memory of 2744	1192	a0a6a1c54775713ad3e884b6bc49f2c74f393464a69175c8713221504ae6d72a.exe	28
PID 1192 wrote to memory of 2744	1192	a0a6a1c54775713ad3e884b6bc49f2c74f393464a69175c8713221504ae6d72a.exe	28
PID 1192 wrote to memory of 2744	1192	a0a6a1c54775713ad3e884b6bc49f2c74f393464a69175c8713221504ae6d72a.exe	28
PID 2744 wrote to memory of 2668	2744	lqhpvxmtbn.exe	29
PID 2744 wrote to memory of 2668	2744	lqhpvxmtbn.exe	29
PID 2744 wrote to memory of 2668	2744	lqhpvxmtbn.exe	29
PID 2744 wrote to memory of 2668	2744	lqhpvxmtbn.exe	29
PID 2744 wrote to memory of 2668	2744	lqhpvxmtbn.exe	29
PID 1248 wrote to memory of 2684	1248	Explorer.EXE	30
PID 1248 wrote to memory of 2684	1248	Explorer.EXE	30
PID 1248 wrote to memory of 2684	1248	Explorer.EXE	30
PID 1248 wrote to memory of 2684	1248	Explorer.EXE	30
PID 2684 wrote to memory of 2568	2684	chkdsk.exe	31
PID 2684 wrote to memory of 2568	2684	chkdsk.exe	31
PID 2684 wrote to memory of 2568	2684	chkdsk.exe	31
PID 2684 wrote to memory of 2568	2684	chkdsk.exe	31

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Users\Admin\AppData\Local\Temp\a0a6a1c54775713ad3e884b6bc49f2c74f393464a69175c8713221504ae6d72a.exe
  "C:\Users\Admin\AppData\Local\Temp\a0a6a1c54775713ad3e884b6bc49f2c74f393464a69175c8713221504ae6d72a.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Users\Admin\AppData\Local\Temp\lqhpvxmtbn.exe
    "C:\Users\Admin\AppData\Local\Temp\lqhpvxmtbn.exe"
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious use of SetThreadContext
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of WriteProcessMemory
    PID:2744
  - - C:\Users\Admin\AppData\Local\Temp\lqhpvxmtbn.exe
      "C:\Users\Admin\AppData\Local\Temp\lqhpvxmtbn.exe"
      4⤵
      Executes dropped EXE
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      PID:2668
- 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:2684
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\lqhpvxmtbn.exe"
    3⤵
    PID:2568

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\lqhpvxmtbn.exe

Filesize
259KB

MD5
59d3466cb62ce44599445f169be90a8b

SHA1
fbc781048b2a66f62534cbf4b34a3574f4b17509

SHA256
0db8d28e0ef57e82a3dfe1b19a95ae245e53a72f43546f01d19e074055018c3a

SHA512
a3682fece2fd39865d64094ab1b831ab132ca088ac03954a09e71f4b2e1f1f003281b2d2e7b5c1f82009d778bbe56de180f0599dae71ae0774bbae5d2b19cd0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\lqhpvxmtbn.exe

Filesize
259KB

MD5
59d3466cb62ce44599445f169be90a8b

SHA1
fbc781048b2a66f62534cbf4b34a3574f4b17509

SHA256
0db8d28e0ef57e82a3dfe1b19a95ae245e53a72f43546f01d19e074055018c3a

SHA512
a3682fece2fd39865d64094ab1b831ab132ca088ac03954a09e71f4b2e1f1f003281b2d2e7b5c1f82009d778bbe56de180f0599dae71ae0774bbae5d2b19cd0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\lqhpvxmtbn.exe

Filesize
259KB

MD5
59d3466cb62ce44599445f169be90a8b

SHA1
fbc781048b2a66f62534cbf4b34a3574f4b17509

SHA256
0db8d28e0ef57e82a3dfe1b19a95ae245e53a72f43546f01d19e074055018c3a

SHA512
a3682fece2fd39865d64094ab1b831ab132ca088ac03954a09e71f4b2e1f1f003281b2d2e7b5c1f82009d778bbe56de180f0599dae71ae0774bbae5d2b19cd0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\lqhpvxmtbn.exe

Filesize
259KB

MD5
59d3466cb62ce44599445f169be90a8b

SHA1
fbc781048b2a66f62534cbf4b34a3574f4b17509

SHA256
0db8d28e0ef57e82a3dfe1b19a95ae245e53a72f43546f01d19e074055018c3a

SHA512
a3682fece2fd39865d64094ab1b831ab132ca088ac03954a09e71f4b2e1f1f003281b2d2e7b5c1f82009d778bbe56de180f0599dae71ae0774bbae5d2b19cd0d

Download Submit
C:\Users\Admin\AppData\Local\Temp\zlgoeggba.f

Filesize
205KB

MD5
239f1ff96b0e979869e96c0b16b96196

SHA1
870933b2120c8a592648524a56d8b3a81871b0fa

SHA256
f60e2fb571c7a63cfe803c04c96afa011f04ff0767d78f1f10694ad96d017ea7

SHA512
7e03d69fb7b1138c4226313249536b3ddb13374dae458b76c805919d03137dcd1c74fbfa1fad925c0e1dabaa9bf267701b6033485b9ed0620b2d7958bf8584f7

Download Submit
\Users\Admin\AppData\Local\Temp\lqhpvxmtbn.exe

Filesize
259KB

MD5
59d3466cb62ce44599445f169be90a8b

SHA1
fbc781048b2a66f62534cbf4b34a3574f4b17509

SHA256
0db8d28e0ef57e82a3dfe1b19a95ae245e53a72f43546f01d19e074055018c3a

SHA512
a3682fece2fd39865d64094ab1b831ab132ca088ac03954a09e71f4b2e1f1f003281b2d2e7b5c1f82009d778bbe56de180f0599dae71ae0774bbae5d2b19cd0d

Download Submit
\Users\Admin\AppData\Local\Temp\lqhpvxmtbn.exe

Filesize
259KB

MD5
59d3466cb62ce44599445f169be90a8b

SHA1
fbc781048b2a66f62534cbf4b34a3574f4b17509

SHA256
0db8d28e0ef57e82a3dfe1b19a95ae245e53a72f43546f01d19e074055018c3a

SHA512
a3682fece2fd39865d64094ab1b831ab132ca088ac03954a09e71f4b2e1f1f003281b2d2e7b5c1f82009d778bbe56de180f0599dae71ae0774bbae5d2b19cd0d

Download Submit
\Users\Admin\AppData\Local\Temp\lqhpvxmtbn.exe

Filesize
259KB

MD5
59d3466cb62ce44599445f169be90a8b

SHA1
fbc781048b2a66f62534cbf4b34a3574f4b17509

SHA256
0db8d28e0ef57e82a3dfe1b19a95ae245e53a72f43546f01d19e074055018c3a

SHA512
a3682fece2fd39865d64094ab1b831ab132ca088ac03954a09e71f4b2e1f1f003281b2d2e7b5c1f82009d778bbe56de180f0599dae71ae0774bbae5d2b19cd0d

Download Submit
memory/1248-33-0x00000000073E0000-0x0000000007572000-memory.dmp

Filesize
1.6MB

Download
memory/1248-29-0x0000000003AF0000-0x0000000003CF0000-memory.dmp

Filesize
2.0MB

Download
memory/1248-32-0x0000000004D30000-0x0000000004DE0000-memory.dmp

Filesize
704KB

Download
memory/1248-18-0x0000000002D40000-0x0000000002E40000-memory.dmp

Filesize
1024KB

Download
memory/1248-36-0x0000000004D30000-0x0000000004DE0000-memory.dmp

Filesize
704KB

Download
memory/1248-31-0x0000000004D30000-0x0000000004DE0000-memory.dmp

Filesize
704KB

Download
memory/1248-20-0x00000000073E0000-0x0000000007572000-memory.dmp

Filesize
1.6MB

Download
memory/2668-19-0x00000000002D0000-0x00000000002E5000-memory.dmp

Filesize
84KB

Download
memory/2668-17-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2668-15-0x0000000000860000-0x0000000000B63000-memory.dmp

Filesize
3.0MB

Download
memory/2668-13-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2684-24-0x0000000000EB0000-0x0000000000EB7000-memory.dmp

Filesize
28KB

Download
memory/2684-25-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2684-26-0x00000000022C0000-0x00000000025C3000-memory.dmp

Filesize
3.0MB

Download
memory/2684-27-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2684-28-0x00000000009A0000-0x0000000000A34000-memory.dmp

Filesize
592KB

Download
memory/2684-22-0x0000000000EB0000-0x0000000000EB7000-memory.dmp

Filesize
28KB

Download
memory/2744-9-0x00000000002D0000-0x00000000002D2000-memory.dmp

Filesize
8KB

Download

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