formbook | 035c2fa5d912202dd34e8410b14a42b0db007c2be8ed819bbc444f9818497f5b

General

Target

oldmama.m83.exe
Size

179KB
MD5

8ab3e8276a19c042ec7a789e86462aea
SHA1

86904ffb2bdf8fa3e864ab50471bc8086e720999
SHA256

035c2fa5d912202dd34e8410b14a42b0db007c2be8ed819bbc444f9818497f5b
SHA512

9c9ad8236eb69ae9a748d83ac35224d4de0a563ba0af0431e85a4354f5e81fe5ab0491d2c0f5bbc2c61789f27889545731db5fcd16a6a0264845517422afa78d

Score

10^/10

spyware evasion trojan stealer formbook persistence

Malware Config

Signatures

Suspicious behavior: MapViewOfSection 8 IoCs

pid	Process
1032	oldmama.m83.exe
1032	oldmama.m83.exe
1032	oldmama.m83.exe
1032	oldmama.m83.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe

Deletes itself 1 IoCs

pid	Process
628	cmd.exe

Suspicious use of FindShellTrayWindow 5 IoCs

pid	Process
1308	Explorer.EXE
1308	Explorer.EXE
1308	Explorer.EXE
1308	Explorer.EXE
1308	Explorer.EXE

Suspicious use of SendNotifyMessage 4 IoCs

pid	Process
1308	Explorer.EXE
1308	Explorer.EXE
1308	Explorer.EXE
1308	Explorer.EXE

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

Data from Local System
T1005

Credentials in Files
T1081

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	Explorer.EXE

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

Adds Run entry to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\Machine\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	help.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\OZTP_RBPT = "C:\\Program Files (x86)\\Xpbgpor5\\igfxzp1llp.exe"	help.exe

Suspicious behavior: EnumeratesProcesses 28 IoCs

pid	Process
1032	oldmama.m83.exe
1032	oldmama.m83.exe
1032	oldmama.m83.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe
1104	help.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 1032 set thread context of 1308	1032	oldmama.m83.exe	20
PID 1032 set thread context of 1308	1032	oldmama.m83.exe	20
PID 1104 set thread context of 1308	1104	help.exe	20

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1032	oldmama.m83.exe
Token: SeDebugPrivilege	1104	help.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 1032 wrote to memory of 1104	1032	oldmama.m83.exe	24
PID 1032 wrote to memory of 1104	1032	oldmama.m83.exe	24
PID 1032 wrote to memory of 1104	1032	oldmama.m83.exe	24
PID 1032 wrote to memory of 1104	1032	oldmama.m83.exe	24
PID 1104 wrote to memory of 628	1104	help.exe	25
PID 1104 wrote to memory of 628	1104	help.exe	25
PID 1104 wrote to memory of 628	1104	help.exe	25
PID 1104 wrote to memory of 628	1104	help.exe	25
PID 1104 wrote to memory of 1584	1104	help.exe	30
PID 1104 wrote to memory of 1584	1104	help.exe	30
PID 1104 wrote to memory of 1584	1104	help.exe	30
PID 1104 wrote to memory of 1584	1104	help.exe	30
PID 1104 wrote to memory of 1584	1104	help.exe	30

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Xpbgpor5\igfxzp1llp.exe	help.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\Registry\User\S-1-5-21-1131729243-447456001-3632642222-1000\SOFTWARE\Microsoft\Internet Explorer\IntelliForms\Storage2	help.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Checks whether UAC is enabled
PID:1308
- C:\Users\Admin\AppData\Local\Temp\oldmama.m83.exe
  "C:\Users\Admin\AppData\Local\Temp\oldmama.m83.exe"
  2⤵
  - Suspicious behavior: MapViewOfSection
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetThreadContext
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1032
- - C:\Windows\SysWOW64\help.exe
    "C:\Windows\SysWOW64\help.exe"
    3⤵
    - Suspicious behavior: MapViewOfSection
    - Adds Run entry to start application
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of SetThreadContext
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    - Drops file in Program Files directory
    - Modifies Internet Explorer settings
    PID:1104
  - - C:\Windows\SysWOW64\cmd.exe
      /c del "C:\Users\Admin\AppData\Local\Temp\oldmama.m83.exe"
      4⤵
      Deletes itself
      PID:628
  - - C:\Program Files\Mozilla Firefox\Firefox.exe
      "C:\Program Files\Mozilla Firefox\Firefox.exe"
      4⤵
      PID:1584

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/1104-1-0x0000000000080000-0x0000000000086000-memory.dmp

Filesize
24KB

Download
memory/1104-3-0x0000000001720000-0x00000000018A8000-memory.dmp

Filesize
1.5MB

Download
memory/1104-4-0x00000000038A0000-0x0000000003A06000-memory.dmp

Filesize
1.4MB

Download
memory/1584-6-0x000000013FBD0000-0x000000013FC63000-memory.dmp

Filesize
588KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads