formbook | ff87df006fb01a3f40c3eaa5f64efbb699378e096c28d4179eb5b3c023774acc

General

Target

TNT Shipping Document.exe
Size

620KB
MD5

0593245b016a4aabdd56134224efa148
SHA1

62aa8ce315251c033878e82324d786dc2c2f2ec1
SHA256

ff87df006fb01a3f40c3eaa5f64efbb699378e096c28d4179eb5b3c023774acc
SHA512

f5391c70a233be9568d252e8b920cec388817c04ab3a7dfc691c3b1e68743ed46db3261eb1080053b207631cb5e45e5226443ee64b8ed8c989a334f4652e6e2a
SSDEEP

12288:/UZqEisUH/iA0ZTCFmTGpU3TEtxQ4CcH0R5SH9+yF05IyrsgpWVa6AJ/qn:qqEWpuCY/3T3jEd+e05IEhpF6+qn

Score

10^/10

formbook cy12 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

cy12

Decoy

routinelywell.com

traderinformation.com

xv1lz.cfd

elfiensclinic.com

dfwtexasmilitaryagent.com

gb3p8a.com

ofcure.com

kslgd.link

apexassisthubs.com

270hg.com

spacovitta.com

mattress-info-hu-kwu.today

jakestarrbroadcast.com

modestswimwearshop.com

game0814.com

gec.tokyo

growwellnesscoaching.com

thefavoreats.com

gaasmantech.net

mloffers.net

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/2664-15-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2664-19-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2772-25-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/2772-27-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
2576	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2236 set thread context of 2664	2236	TNT Shipping Document.exe	29
PID 2664 set thread context of 1268	2664	TNT Shipping Document.exe	13
PID 2772 set thread context of 1268	2772	chkdsk.exe	13

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 26 IoCs

pid	Process
2236	TNT Shipping Document.exe
2236	TNT Shipping Document.exe
2236	TNT Shipping Document.exe
2664	TNT Shipping Document.exe
2664	TNT Shipping Document.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe
2772	chkdsk.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1268	Explorer.EXE

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2664	TNT Shipping Document.exe
2664	TNT Shipping Document.exe
2664	TNT Shipping Document.exe
2772	chkdsk.exe
2772	chkdsk.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2236	TNT Shipping Document.exe
Token: SeDebugPrivilege	2664	TNT Shipping Document.exe
Token: SeDebugPrivilege	2772	chkdsk.exe

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
1268	Explorer.EXE
1268	Explorer.EXE

Suspicious use of SendNotifyMessage 2 IoCs

pid	Process
1268	Explorer.EXE
1268	Explorer.EXE

Suspicious use of WriteProcessMemory 19 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 2628	2236	TNT Shipping Document.exe	28
PID 2236 wrote to memory of 2628	2236	TNT Shipping Document.exe	28
PID 2236 wrote to memory of 2628	2236	TNT Shipping Document.exe	28
PID 2236 wrote to memory of 2628	2236	TNT Shipping Document.exe	28
PID 2236 wrote to memory of 2664	2236	TNT Shipping Document.exe	29
PID 2236 wrote to memory of 2664	2236	TNT Shipping Document.exe	29
PID 2236 wrote to memory of 2664	2236	TNT Shipping Document.exe	29
PID 2236 wrote to memory of 2664	2236	TNT Shipping Document.exe	29
PID 2236 wrote to memory of 2664	2236	TNT Shipping Document.exe	29
PID 2236 wrote to memory of 2664	2236	TNT Shipping Document.exe	29
PID 2236 wrote to memory of 2664	2236	TNT Shipping Document.exe	29
PID 1268 wrote to memory of 2772	1268	Explorer.EXE	30
PID 1268 wrote to memory of 2772	1268	Explorer.EXE	30
PID 1268 wrote to memory of 2772	1268	Explorer.EXE	30
PID 1268 wrote to memory of 2772	1268	Explorer.EXE	30
PID 2772 wrote to memory of 2576	2772	chkdsk.exe	33
PID 2772 wrote to memory of 2576	2772	chkdsk.exe	33
PID 2772 wrote to memory of 2576	2772	chkdsk.exe	33
PID 2772 wrote to memory of 2576	2772	chkdsk.exe	33

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1268
- C:\Users\Admin\AppData\Local\Temp\TNT Shipping Document.exe
  "C:\Users\Admin\AppData\Local\Temp\TNT Shipping Document.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2236
- - C:\Users\Admin\AppData\Local\Temp\TNT Shipping Document.exe
    "C:\Users\Admin\AppData\Local\Temp\TNT Shipping Document.exe"
    3⤵
    PID:2628
- - C:\Users\Admin\AppData\Local\Temp\TNT Shipping Document.exe
    "C:\Users\Admin\AppData\Local\Temp\TNT Shipping Document.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2664
- 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:2772
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\TNT Shipping Document.exe"
    3⤵
    - Deletes itself
    PID:2576

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

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1268-34-0x0000000006C70000-0x0000000006D71000-memory.dmp

Filesize
1.0MB

Download
memory/1268-20-0x0000000003740000-0x0000000003840000-memory.dmp

Filesize
1024KB

Download
memory/1268-28-0x0000000006E30000-0x0000000006F95000-memory.dmp

Filesize
1.4MB

Download
memory/1268-31-0x0000000006C70000-0x0000000006D71000-memory.dmp

Filesize
1.0MB

Download
memory/1268-22-0x0000000006E30000-0x0000000006F95000-memory.dmp

Filesize
1.4MB

Download
memory/1268-32-0x0000000006C70000-0x0000000006D71000-memory.dmp

Filesize
1.0MB

Download
memory/2236-4-0x0000000074D70000-0x000000007545E000-memory.dmp

Filesize
6.9MB

Download
memory/2236-7-0x0000000001D50000-0x0000000001D5C000-memory.dmp

Filesize
48KB

Download
memory/2236-8-0x0000000004F40000-0x0000000004FAE000-memory.dmp

Filesize
440KB

Download
memory/2236-6-0x0000000001D40000-0x0000000001D48000-memory.dmp

Filesize
32KB

Download
memory/2236-5-0x0000000004710000-0x0000000004750000-memory.dmp

Filesize
256KB

Download
memory/2236-3-0x00000000005B0000-0x00000000005C6000-memory.dmp

Filesize
88KB

Download
memory/2236-2-0x0000000004710000-0x0000000004750000-memory.dmp

Filesize
256KB

Download
memory/2236-16-0x0000000074D70000-0x000000007545E000-memory.dmp

Filesize
6.9MB

Download
memory/2236-0-0x0000000000250000-0x00000000002EE000-memory.dmp

Filesize
632KB

Download
memory/2236-1-0x0000000074D70000-0x000000007545E000-memory.dmp

Filesize
6.9MB

Download
memory/2664-17-0x0000000000960000-0x0000000000C63000-memory.dmp

Filesize
3.0MB

Download
memory/2664-21-0x0000000000200000-0x0000000000214000-memory.dmp

Filesize
80KB

Download
memory/2664-19-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2664-15-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2664-9-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2664-13-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2664-11-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2772-23-0x0000000000CF0000-0x0000000000CF7000-memory.dmp

Filesize
28KB

Download
memory/2772-24-0x0000000000CF0000-0x0000000000CF7000-memory.dmp

Filesize
28KB

Download
memory/2772-25-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2772-26-0x0000000002100000-0x0000000002403000-memory.dmp

Filesize
3.0MB

Download
memory/2772-27-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2772-30-0x0000000000AD0000-0x0000000000B63000-memory.dmp

Filesize
588KB

Download

Analysis

Sharing