formbook | f3fe763c0bab8b6423578bbe031190508406459cf1648b47dcba314c95ca8fbc

Analysis

max time kernel
150s
max time network
119s
platform
windows7_x64
resource
win7-20240705-en
resource tags

arch:x64arch:x86image:win7-20240705-enlocale:en-usos:windows7-x64system
submitted
05-08-2024 13:02

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

UjCrfOAkJJiZyZh.exe
Size

720KB
MD5

8bc1a99eb7877ceb4fc51338ef7fe9f2
SHA1

e16dc5f7b5af7340c8ccf95f0bb66f4dc7516053
SHA256

f3fe763c0bab8b6423578bbe031190508406459cf1648b47dcba314c95ca8fbc
SHA512

8e1768e9fb8279dad8deba557e3d06c65646508c87cd18c9b3d031969ee9ebec2024cc9af3cfcbb5d497d835049364726542c9ca3e7259d5d2b30491dc61bcbc
SSDEEP

12288:tU3929BC4rqhp2ejzGSs89JtD0EEdf6aqjCScbuyUIzEYPmRDCVZkR:tU89BNuhT489J90EEdf6aSci+9E

Score

10^/10

formbook ps15 discovery execution rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

ps15

Decoy

57797.asia

jhpwt.net

basketballdrillsforkids.com

zgzf6.rest

casinomaxnodepositbonus.icu

uptocryptonews.com

gomenasorry.com

fortanix.space

stripscity.xyz

genbotdiy.xyz

mayson-wedding.com

neb-hub.net

seancollinsmusic.com

migraine-treatment-57211.bond

prosperawoman.info

tradefairleads.tech

xn--yeminlitercme-6ob.com

xwaveevent.com

fashiontrendshub.xyz

window-replacement-80823.bond

Signatures

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

Formbook payload 2 IoCs

rat

resource	yara_rule
behavioral1/memory/2852-23-0x0000000000400000-0x000000000042F000-memory.dmp	formbook
behavioral1/memory/2660-28-0x00000000000C0000-0x00000000000EF000-memory.dmp	formbook

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
1472	powershell.exe
2716	powershell.exe

Deletes itself 1 IoCs

pid	Process
1172	cmd.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 2404 set thread context of 2852	2404	UjCrfOAkJJiZyZh.exe	38
PID 2852 set thread context of 1228	2852	UjCrfOAkJJiZyZh.exe	21
PID 2660 set thread context of 1228	2660	colorcpl.exe	21

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 6 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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	UjCrfOAkJJiZyZh.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	colorcpl.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2712	schtasks.exe

Suspicious behavior: EnumeratesProcesses 33 IoCs

pid	Process
2404	UjCrfOAkJJiZyZh.exe
2404	UjCrfOAkJJiZyZh.exe
2852	UjCrfOAkJJiZyZh.exe
2852	UjCrfOAkJJiZyZh.exe
2716	powershell.exe
1472	powershell.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe
2660	colorcpl.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
2852	UjCrfOAkJJiZyZh.exe
2852	UjCrfOAkJJiZyZh.exe
2852	UjCrfOAkJJiZyZh.exe
2660	colorcpl.exe
2660	colorcpl.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	2404	UjCrfOAkJJiZyZh.exe
Token: SeDebugPrivilege	2852	UjCrfOAkJJiZyZh.exe
Token: SeDebugPrivilege	2716	powershell.exe
Token: SeDebugPrivilege	1472	powershell.exe
Token: SeDebugPrivilege	2660	colorcpl.exe

Suspicious use of WriteProcessMemory 31 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 1472	2404	UjCrfOAkJJiZyZh.exe	31
PID 2404 wrote to memory of 1472	2404	UjCrfOAkJJiZyZh.exe	31
PID 2404 wrote to memory of 1472	2404	UjCrfOAkJJiZyZh.exe	31
PID 2404 wrote to memory of 1472	2404	UjCrfOAkJJiZyZh.exe	31
PID 2404 wrote to memory of 2716	2404	UjCrfOAkJJiZyZh.exe	33
PID 2404 wrote to memory of 2716	2404	UjCrfOAkJJiZyZh.exe	33
PID 2404 wrote to memory of 2716	2404	UjCrfOAkJJiZyZh.exe	33
PID 2404 wrote to memory of 2716	2404	UjCrfOAkJJiZyZh.exe	33
PID 2404 wrote to memory of 2712	2404	UjCrfOAkJJiZyZh.exe	34
PID 2404 wrote to memory of 2712	2404	UjCrfOAkJJiZyZh.exe	34
PID 2404 wrote to memory of 2712	2404	UjCrfOAkJJiZyZh.exe	34
PID 2404 wrote to memory of 2712	2404	UjCrfOAkJJiZyZh.exe	34
PID 2404 wrote to memory of 2972	2404	UjCrfOAkJJiZyZh.exe	37
PID 2404 wrote to memory of 2972	2404	UjCrfOAkJJiZyZh.exe	37
PID 2404 wrote to memory of 2972	2404	UjCrfOAkJJiZyZh.exe	37
PID 2404 wrote to memory of 2972	2404	UjCrfOAkJJiZyZh.exe	37
PID 2404 wrote to memory of 2852	2404	UjCrfOAkJJiZyZh.exe	38
PID 2404 wrote to memory of 2852	2404	UjCrfOAkJJiZyZh.exe	38
PID 2404 wrote to memory of 2852	2404	UjCrfOAkJJiZyZh.exe	38
PID 2404 wrote to memory of 2852	2404	UjCrfOAkJJiZyZh.exe	38
PID 2404 wrote to memory of 2852	2404	UjCrfOAkJJiZyZh.exe	38
PID 2404 wrote to memory of 2852	2404	UjCrfOAkJJiZyZh.exe	38
PID 2404 wrote to memory of 2852	2404	UjCrfOAkJJiZyZh.exe	38
PID 1228 wrote to memory of 2660	1228	Explorer.EXE	43
PID 1228 wrote to memory of 2660	1228	Explorer.EXE	43
PID 1228 wrote to memory of 2660	1228	Explorer.EXE	43
PID 1228 wrote to memory of 2660	1228	Explorer.EXE	43
PID 2660 wrote to memory of 1172	2660	colorcpl.exe	44
PID 2660 wrote to memory of 1172	2660	colorcpl.exe	44
PID 2660 wrote to memory of 1172	2660	colorcpl.exe	44
PID 2660 wrote to memory of 1172	2660	colorcpl.exe	44

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1228
- C:\Users\Admin\AppData\Local\Temp\UjCrfOAkJJiZyZh.exe
  "C:\Users\Admin\AppData\Local\Temp\UjCrfOAkJJiZyZh.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2404
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\UjCrfOAkJJiZyZh.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1472
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\nyQRtjgLz.exe"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2716
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nyQRtjgLz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp426.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2712
- - C:\Users\Admin\AppData\Local\Temp\UjCrfOAkJJiZyZh.exe
    "C:\Users\Admin\AppData\Local\Temp\UjCrfOAkJJiZyZh.exe"
    3⤵
    PID:2972
- - C:\Users\Admin\AppData\Local\Temp\UjCrfOAkJJiZyZh.exe
    "C:\Users\Admin\AppData\Local\Temp\UjCrfOAkJJiZyZh.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:2852
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:1984
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2612
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2620
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2628
- C:\Windows\SysWOW64\colorcpl.exe
  "C:\Windows\SysWOW64\colorcpl.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2660
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\UjCrfOAkJJiZyZh.exe"
    3⤵
    - Deletes itself
    - System Location Discovery: System Language Discovery
    PID:1172

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\tmp426.tmp

Filesize
1KB

MD5
72d26eda83cef57d6c0f9e6afbead7cd

SHA1
cbf4efa1a9b96a038e42dc9b354c8f942ef1d134

SHA256
e84707c537841c645336a7553bdb55060c5b9d8680e1c2641b6467aa6c5146e3

SHA512
e61def18592ff97fb6955bb28fac05cbe0565730ce791bdf1d3eff3409b12ad92852a93c4b6b5318335967d7225c49d006e538b68d01111bdf9c6b49618a78a2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
754003d441c17fc3bd36379b6b90325c

SHA1
efdedb07f422fada6f933d0cd0f7011b606fc7d2

SHA256
482c9bef929983e49c029d7ee4a542067629e218f9db83376b66c799b675208d

SHA512
3f765ed73150eb5283dbb628533aeaf914f2c72e15e5fd687194c5c740abe1f51fa97a2d9f7cca409f150388173edac7497b37802bd0bffa2d346b264154943b

Download Submit
memory/1228-26-0x0000000000060000-0x0000000000160000-memory.dmp

Filesize
1024KB

Download
memory/2404-24-0x0000000074B10000-0x00000000751FE000-memory.dmp

Filesize
6.9MB

Download
memory/2404-4-0x00000000005E0000-0x00000000005EE000-memory.dmp

Filesize
56KB

Download
memory/2404-5-0x0000000002490000-0x0000000002506000-memory.dmp

Filesize
472KB

Download
memory/2404-3-0x00000000005B0000-0x00000000005C6000-memory.dmp

Filesize
88KB

Download
memory/2404-2-0x0000000074B10000-0x00000000751FE000-memory.dmp

Filesize
6.9MB

Download
memory/2404-0-0x0000000074B1E000-0x0000000074B1F000-memory.dmp

Filesize
4KB

Download
memory/2404-1-0x0000000000DD0000-0x0000000000E86000-memory.dmp

Filesize
728KB

Download
memory/2660-27-0x0000000000F80000-0x0000000000F98000-memory.dmp

Filesize
96KB

Download
memory/2660-28-0x00000000000C0000-0x00000000000EF000-memory.dmp

Filesize
188KB

Download
memory/2852-18-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2852-23-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download
memory/2852-22-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2852-20-0x0000000000400000-0x000000000042F000-memory.dmp

Filesize
188KB

Download