formbook | 1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3

General

Target

1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe
Size

511KB
MD5

e4fef91301f6634978b75edab2cfd836
SHA1

c628c404594d13ef1bfc8df2a65c3d955bb47ca2
SHA256

1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3
SHA512

6a4e861e1b99a15c61e17c270f8dad8ed809aaadcae44bc4ac3cccfe2f863bb9a2334dc98a87654c19a4d91ae5ad62285d0be6f6f05e461a30eda7ce03f6c205
SSDEEP

12288:JGk9RQVXaahBaUi2iNIYI864BI94c9Yr+tJXktSljSX:JtRQMahAUi1u/864u4cWit7gX

Score

10^/10

formbook kzk9 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

kzk9

Decoy

tianconghuo.club

1996-page.com

ourtownmax.net

conservativetreehose.com

synth.repair

donnachicacreperia.com

tentfull.com

weapp.download

surfersink.com

gattlebusinessservices.com

sebastian249.com

anhphuc.company

betternatureproducts.net

defroplate.com

seattlesquidsquad.com

polarjob.com

lendingadvantage.com

angelsondope.com

goportjitney.com

tiendagrupojagr.com

Signatures

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

Formbook payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/2820-11-0x0000000000400000-0x000000000042E000-memory.dmp	formbook

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1608 set thread context of 2820	1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe	99

System Location Discovery: System Language Discovery 1 TTPs 1 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	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe
1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe
1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe
1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe
1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe
1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe
2820	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe
2820	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 2820	1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe	99
PID 1608 wrote to memory of 2820	1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe	99
PID 1608 wrote to memory of 2820	1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe	99
PID 1608 wrote to memory of 2820	1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe	99
PID 1608 wrote to memory of 2820	1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe	99
PID 1608 wrote to memory of 2820	1608	1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe	99

C:\Users\Admin\AppData\Local\Temp\1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe
"C:\Users\Admin\AppData\Local\Temp\1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1608
- C:\Users\Admin\AppData\Local\Temp\1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe
  "C:\Users\Admin\AppData\Local\Temp\1bae1fc3edbbaed09ab3b2b6f5c0ee9f72d280daaf42a7591ba54f98d4f715f3.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  PID:2820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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/1608-6-0x0000000007720000-0x000000000772E000-memory.dmp

Filesize
56KB

Download
memory/1608-0-0x000000007534E000-0x000000007534F000-memory.dmp

Filesize
4KB

Download
memory/1608-2-0x0000000007A60000-0x0000000008004000-memory.dmp

Filesize
5.6MB

Download
memory/1608-3-0x0000000007550000-0x00000000075E2000-memory.dmp

Filesize
584KB

Download
memory/1608-4-0x0000000001150000-0x000000000115A000-memory.dmp

Filesize
40KB

Download
memory/1608-5-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1608-1-0x00000000006C0000-0x0000000000746000-memory.dmp

Filesize
536KB

Download
memory/1608-7-0x000000007534E000-0x000000007534F000-memory.dmp

Filesize
4KB

Download
memory/1608-10-0x0000000007A10000-0x0000000007A66000-memory.dmp

Filesize
344KB

Download
memory/1608-9-0x0000000008110000-0x00000000081AC000-memory.dmp

Filesize
624KB

Download
memory/1608-8-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/1608-13-0x0000000075340000-0x0000000075AF0000-memory.dmp

Filesize
7.7MB

Download
memory/2820-11-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/2820-14-0x0000000001420000-0x000000000176A000-memory.dmp

Filesize
3.3MB

Download

Analysis

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