formbook | 6bf5a3809ca423061cb16a815ca5e5f3ba86d6c7fbf5233fd68b589012eae0ab

Analysis

max time kernel
148s
max time network
150s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
16/09/2022, 08:18

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General

Target

USD92.15.exe
Size

997KB
MD5

7b711b729b01c38bbbed5ee08ef88347
SHA1

45c70d807a9b741aec980b559ebec0c79a4cd1a0
SHA256

6bf5a3809ca423061cb16a815ca5e5f3ba86d6c7fbf5233fd68b589012eae0ab
SHA512

b94950da81e664bb2248411c39adb748f2042cad9e03ed4c212913e1b6e861d99e174b39e90084eaeeeaae6e067af7fd164ecf20d2f115a0ae77ffa9156f4581
SSDEEP

12288:vJ6ShV7uikFgEeYeFav5bq5/wA9IVBrFPVgIBzcJtNv2j:h9hlubgSeFOb6/6frFPVXBzcRI

Score

10^/10

formbook ejgp rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

ejgp

Decoy

+0NM3RekW0bfgQ==

iQmI3Aw2aoOljoA0XZi1

5Ei2CVwQyOgZwV/u4eiMFdKqc84=

ImSvoul9o0reZ9TKUAUkXgw=

kuCrMIco5vT3sxCUQ+pYsVoG7Q==

btgpLo8XM+qHGLzoizgjRg==

fqK2iM5vW0bfgQ==

ObS1UE+TByKRZozamdULr0naXbKPLA==

bcohBkmNNcpp3gJ/XE2/mBs=

yY5b/cLb3+0llg==

GVEVqBNXl7Kic2Sm

Tqpt2tTlW0bfgQ==

eurYRI7UFDBjDbzpIJKz

7wwDuczemAaJNrrpIJKz

bprQyLvLEj+hhMLHHg==

qdoAqq/XOjh0ItzLLJpHBgxoJgM2

gr5SnMA66BpM8+hUM+iawNKeZsQ=

XLoO6yFTsdNuEYpUPfScwqXEk7dqBnU=

vS2Cjfg0tqBF1GpuHemLV8/g4wUwPspS

U5wqXJjP/u/qg3sE+YKsgVVByFw+

Signatures

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
8	1312	rundll32.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials in Files
T1081

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 828 set thread context of 900	828	USD92.15.exe	32
PID 900 set thread context of 1220	900	RegSvcs.exe	16
PID 900 set thread context of 1220	900	RegSvcs.exe	16
PID 1312 set thread context of 1220	1312	rundll32.exe	16

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

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

persistence

Scheduled Task

T1053

pid	Process
1600	schtasks.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-3845472200-3839195424-595303356-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	rundll32.exe

Suspicious behavior: EnumeratesProcesses 20 IoCs

pid	Process
828	USD92.15.exe
828	USD92.15.exe
1528	powershell.exe
900	RegSvcs.exe
900	RegSvcs.exe
900	RegSvcs.exe
900	RegSvcs.exe
900	RegSvcs.exe
1312	rundll32.exe
1312	rundll32.exe
1312	rundll32.exe
1312	rundll32.exe
1312	rundll32.exe
1312	rundll32.exe
1312	rundll32.exe
1312	rundll32.exe
1312	rundll32.exe
1312	rundll32.exe
1312	rundll32.exe
1312	rundll32.exe

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
900	RegSvcs.exe
900	RegSvcs.exe
900	RegSvcs.exe
900	RegSvcs.exe
1312	rundll32.exe
1312	rundll32.exe
1312	rundll32.exe
1312	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	828	USD92.15.exe
Token: SeDebugPrivilege	1528	powershell.exe
Token: SeDebugPrivilege	900	RegSvcs.exe
Token: SeDebugPrivilege	1312	rundll32.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
828	USD92.15.exe
1220	Explorer.EXE
1220	Explorer.EXE
1220	Explorer.EXE
1220	Explorer.EXE

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
828	USD92.15.exe
1220	Explorer.EXE
1220	Explorer.EXE

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 828 wrote to memory of 1528	828	USD92.15.exe	28
PID 828 wrote to memory of 1528	828	USD92.15.exe	28
PID 828 wrote to memory of 1528	828	USD92.15.exe	28
PID 828 wrote to memory of 1528	828	USD92.15.exe	28
PID 828 wrote to memory of 1600	828	USD92.15.exe	30
PID 828 wrote to memory of 1600	828	USD92.15.exe	30
PID 828 wrote to memory of 1600	828	USD92.15.exe	30
PID 828 wrote to memory of 1600	828	USD92.15.exe	30
PID 828 wrote to memory of 900	828	USD92.15.exe	32
PID 828 wrote to memory of 900	828	USD92.15.exe	32
PID 828 wrote to memory of 900	828	USD92.15.exe	32
PID 828 wrote to memory of 900	828	USD92.15.exe	32
PID 828 wrote to memory of 900	828	USD92.15.exe	32
PID 828 wrote to memory of 900	828	USD92.15.exe	32
PID 828 wrote to memory of 900	828	USD92.15.exe	32
PID 828 wrote to memory of 900	828	USD92.15.exe	32
PID 828 wrote to memory of 900	828	USD92.15.exe	32
PID 828 wrote to memory of 900	828	USD92.15.exe	32
PID 900 wrote to memory of 1312	900	RegSvcs.exe	33
PID 900 wrote to memory of 1312	900	RegSvcs.exe	33
PID 900 wrote to memory of 1312	900	RegSvcs.exe	33
PID 900 wrote to memory of 1312	900	RegSvcs.exe	33
PID 900 wrote to memory of 1312	900	RegSvcs.exe	33
PID 900 wrote to memory of 1312	900	RegSvcs.exe	33
PID 900 wrote to memory of 1312	900	RegSvcs.exe	33
PID 1312 wrote to memory of 1092	1312	rundll32.exe	35
PID 1312 wrote to memory of 1092	1312	rundll32.exe	35
PID 1312 wrote to memory of 1092	1312	rundll32.exe	35
PID 1312 wrote to memory of 1092	1312	rundll32.exe	35
PID 1312 wrote to memory of 1092	1312	rundll32.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1220
- C:\Users\Admin\AppData\Local\Temp\USD92.15.exe
  "C:\Users\Admin\AppData\Local\Temp\USD92.15.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:828
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\UWqtQgp.exe"
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1528
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\UWqtQgp" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA9F6.tmp"
    3⤵
    - Creates scheduled task(s)
    PID:1600
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:900
  - - C:\Windows\SysWOW64\rundll32.exe
      "C:\Windows\SysWOW64\rundll32.exe"
      4⤵
      Blocklisted process makes network request
      Suspicious use of SetThreadContext
      Modifies Internet Explorer settings
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:1312
    - - C:\Program Files\Mozilla Firefox\Firefox.exe
        
        "C:\Program Files\Mozilla Firefox\Firefox.exe"
        5⤵
        
        PID:1092

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA9F6.tmp

Filesize
1KB

MD5
39f9f3234cdc79e056ab5779eb10253f

SHA1
cd6bb94986a342a6f12692a620422e5a87cf7e3e

SHA256
223aed12b0b7e6464033fd50edf1e4c419c230757ee4ee48e4e7fc7834224101

SHA512
20bb252bae6da1fd2297830befd79dddab991769f98934666ebc4bbdf7682d63cd710c4886ac5d86285000f94e8b54061a07f0792d3a5adef381219ce52f6afa

Download Submit
memory/828-55-0x0000000075A11000-0x0000000075A13000-memory.dmp

Filesize
8KB

Download
memory/828-56-0x00000000005E0000-0x00000000005F6000-memory.dmp

Filesize
88KB

Download
memory/828-57-0x0000000000630000-0x000000000063C000-memory.dmp

Filesize
48KB

Download
memory/828-58-0x0000000004FD0000-0x000000000505C000-memory.dmp

Filesize
560KB

Download
memory/828-54-0x00000000008A0000-0x00000000009A0000-memory.dmp

Filesize
1024KB

Download
memory/828-63-0x0000000004D70000-0x0000000004DA2000-memory.dmp

Filesize
200KB

Download
memory/900-72-0x0000000000950000-0x0000000000C53000-memory.dmp

Filesize
3.0MB

Download
memory/900-64-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/900-65-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/900-67-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/900-79-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/900-73-0x0000000000140000-0x0000000000150000-memory.dmp

Filesize
64KB

Download
memory/900-75-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/900-76-0x00000000002F0000-0x0000000000300000-memory.dmp

Filesize
64KB

Download
memory/1220-85-0x0000000004B80000-0x0000000004C42000-memory.dmp

Filesize
776KB

Download
memory/1220-87-0x0000000004B80000-0x0000000004C42000-memory.dmp

Filesize
776KB

Download
memory/1220-77-0x00000000064D0000-0x00000000065FF000-memory.dmp

Filesize
1.2MB

Download
memory/1220-74-0x0000000004CF0000-0x0000000004E94000-memory.dmp

Filesize
1.6MB

Download
memory/1312-81-0x0000000000AC0000-0x0000000000ACE000-memory.dmp

Filesize
56KB

Download
memory/1312-83-0x0000000002060000-0x0000000002363000-memory.dmp

Filesize
3.0MB

Download
memory/1312-82-0x00000000000D0000-0x00000000000FB000-memory.dmp

Filesize
172KB

Download
memory/1312-84-0x0000000000860000-0x00000000008EF000-memory.dmp

Filesize
572KB

Download
memory/1312-86-0x00000000000D0000-0x00000000000FB000-memory.dmp

Filesize
172KB

Download
memory/1528-71-0x000000006CC00000-0x000000006D1AB000-memory.dmp

Filesize
5.7MB

Download
memory/1528-69-0x000000006CC00000-0x000000006D1AB000-memory.dmp

Filesize
5.7MB

Download