formbook | b02a5fcdaa1a1544084750565c8e6dddf30d0e6974cc39588e066c5ceee651fd

General

Target

Kaas Order 2023 pdf.exe
Size

237KB
MD5

5caade9e8a1281ee68581e53631ec3ed
SHA1

77b9a0f424eed669f235accc64e22519148cd608
SHA256

ce4adf5f77ad3bf554ee6727abfe3c82e49ac5097e4e8d50ba2faba0d05b9c1d
SHA512

b657353982207ac455b50898a5c69b41eaf7953c88dec4635c3384e34c9ad3b79935871c37bd5eb01459dd2398f1186a42b9a2c8d310332201b27324d8ec760f
SSDEEP

3072:HfY/TU9fE9PEtu+bkUV+m5g1dBNvUEc4NprW779OXLMJIg6mZKIx6e7Mk1WVsb:/Ya62k1m5g1pUcc776xmgpk1esb

Score

10^/10

formbook sn26 rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

sn26

Decoy

resenha10.bet

gulshan-rajput.com

xbus.tech

z813my.cfd

wlxzjlny.cfd

auntengotiempo.com

canada-reservation.com

thegiftcompany.shop

esthersilveirapropiedades.com

1wapws.top

ymjblnvo.cfd

termokimik.net

kushiro-artist-school.com

bmmboo.com

caceresconstructionservices.com

kentuckywalkabout.com

bringyourcart.com

miamiwinetour.com

bobcatsocial.site

thirdmind.network

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/2108-62-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2108-65-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2416-73-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook
behavioral1/memory/2416-75-0x0000000000080000-0x00000000000AF000-memory.dmp	formbook

Deletes itself 1 IoCs

pid	Process
908	cmd.exe

Loads dropped DLL 1 IoCs

pid	Process
2300	Kaas Order 2023 pdf.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2300 set thread context of 2108	2300	Kaas Order 2023 pdf.exe	28
PID 2108 set thread context of 1236	2108	Kaas Order 2023 pdf.exe	8
PID 2416 set thread context of 1236	2416	cmd.exe	8

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 30 IoCs

pid	Process
2108	Kaas Order 2023 pdf.exe
2108	Kaas Order 2023 pdf.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe
2416	cmd.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1236	Explorer.EXE

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
2300	Kaas Order 2023 pdf.exe
2108	Kaas Order 2023 pdf.exe
2108	Kaas Order 2023 pdf.exe
2108	Kaas Order 2023 pdf.exe
2416	cmd.exe
2416	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2108	Kaas Order 2023 pdf.exe
Token: SeDebugPrivilege	2416	cmd.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2300 wrote to memory of 2108	2300	Kaas Order 2023 pdf.exe	28
PID 2300 wrote to memory of 2108	2300	Kaas Order 2023 pdf.exe	28
PID 2300 wrote to memory of 2108	2300	Kaas Order 2023 pdf.exe	28
PID 2300 wrote to memory of 2108	2300	Kaas Order 2023 pdf.exe	28
PID 2300 wrote to memory of 2108	2300	Kaas Order 2023 pdf.exe	28
PID 1236 wrote to memory of 2416	1236	Explorer.EXE	29
PID 1236 wrote to memory of 2416	1236	Explorer.EXE	29
PID 1236 wrote to memory of 2416	1236	Explorer.EXE	29
PID 1236 wrote to memory of 2416	1236	Explorer.EXE	29
PID 2416 wrote to memory of 908	2416	cmd.exe	32
PID 2416 wrote to memory of 908	2416	cmd.exe	32
PID 2416 wrote to memory of 908	2416	cmd.exe	32
PID 2416 wrote to memory of 908	2416	cmd.exe	32

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of WriteProcessMemory
PID:1236
- C:\Users\Admin\AppData\Local\Temp\Kaas Order 2023 pdf.exe
  "C:\Users\Admin\AppData\Local\Temp\Kaas Order 2023 pdf.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of SetThreadContext
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of WriteProcessMemory
  PID:2300
- - C:\Users\Admin\AppData\Local\Temp\Kaas Order 2023 pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Kaas Order 2023 pdf.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2108
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\SysWOW64\cmd.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2416
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\Kaas Order 2023 pdf.exe"
    3⤵
    - Deletes itself
    PID:908

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\nsoD2BC.tmp\omlddmu.dll

Filesize
10KB

MD5
63a97017f63052b3a9d2abbeecb3c39e

SHA1
264a44877e1fc56393fc4049801b7968a33d26b7

SHA256
63e77a05ddd8a2061a582ac1fd0354643b74bcbe2ce21bdaa23e6c95fc461402

SHA512
a1f992deea0fe8dd19c276c88527f2f1a18ad4b24c50210a8fd9d198dde60d5ae1d5ef2df5a5ab10b32e3fc1892e0d6c02789f08e5795b2d5e4b99d02d4e7969

Download Submit
\Users\Admin\AppData\Local\Temp\nsoD2BC.tmp\omlddmu.dll

Filesize
10KB

MD5
63a97017f63052b3a9d2abbeecb3c39e

SHA1
264a44877e1fc56393fc4049801b7968a33d26b7

SHA256
63e77a05ddd8a2061a582ac1fd0354643b74bcbe2ce21bdaa23e6c95fc461402

SHA512
a1f992deea0fe8dd19c276c88527f2f1a18ad4b24c50210a8fd9d198dde60d5ae1d5ef2df5a5ab10b32e3fc1892e0d6c02789f08e5795b2d5e4b99d02d4e7969

Download Submit
memory/1236-68-0x0000000006730000-0x0000000006886000-memory.dmp

Filesize
1.3MB

Download
memory/1236-83-0x0000000006910000-0x0000000006A2C000-memory.dmp

Filesize
1.1MB

Download
memory/1236-81-0x0000000006910000-0x0000000006A2C000-memory.dmp

Filesize
1.1MB

Download
memory/1236-80-0x0000000006910000-0x0000000006A2C000-memory.dmp

Filesize
1.1MB

Download
memory/1236-76-0x0000000006730000-0x0000000006886000-memory.dmp

Filesize
1.3MB

Download
memory/1236-66-0x00000000036A0000-0x00000000037A0000-memory.dmp

Filesize
1024KB

Download
memory/2108-63-0x00000000008A0000-0x0000000000BA3000-memory.dmp

Filesize
3.0MB

Download
memory/2108-67-0x0000000000340000-0x0000000000355000-memory.dmp

Filesize
84KB

Download
memory/2108-65-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2108-62-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2300-61-0x0000000001C90000-0x0000000001C92000-memory.dmp

Filesize
8KB

Download
memory/2416-70-0x000000004AC60000-0x000000004ACAC000-memory.dmp

Filesize
304KB

Download
memory/2416-72-0x000000004AC60000-0x000000004ACAC000-memory.dmp

Filesize
304KB

Download
memory/2416-73-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2416-74-0x0000000001F70000-0x0000000002273000-memory.dmp

Filesize
3.0MB

Download
memory/2416-75-0x0000000000080000-0x00000000000AF000-memory.dmp

Filesize
188KB

Download
memory/2416-78-0x0000000001CA0000-0x0000000001D34000-memory.dmp

Filesize
592KB

Download

Analysis

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