formbook | 98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea

General

Target

98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe
Size

1.0MB
MD5

820de48affdf7a70230640b8adb01f67
SHA1

f8f004884c53f8e55fff249a851a614dc2f34bcb
SHA256

98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea
SHA512

87f1482527d41fe7fb8e715551f69a00b25b62c203bf814032caf200cac503ac39b7464814c64f83d27fa99ec4d9fd1268d4fad6a959d0860dcd42858aa27abb
SSDEEP

24576:HeUVYtXiZ4xN3f7a3fjyOlch/TMtdycjRI/F3:+UYtXiZ4xxzar+oKcja9

Score

10^/10

formbook dei5 discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

dei5

Decoy

studiomullerphoto.com

reallionairewear.com

dogsalondoggy-tail.com

excelmache.net

bigdiscounters.com

7986799.com

ignition.guru

xiaoxu.info

jpinpd.com

solpool.info

uchooswrewards.com

everestengineeringworks.com

qianglongzhipin.com

deepimper-325.com

appliedrate.com

radsazemehr.com

vivabematividadesfisicas.com

capacitalo.com

somecore.com

listingclass.net

Signatures

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

Formbook payload 3 IoCs

rat

resource	yara_rule
behavioral2/memory/1764-18-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1764-23-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/2792-29-0x0000000001100000-0x000000000112E000-memory.dmp	formbook

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 460 set thread context of 1764	460	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	107
PID 1764 set thread context of 3592	1764	RegSvcs.exe	56
PID 2792 set thread context of 3592	2792	wlanext.exe	56

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 4 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	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	wlanext.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\CLSID\{4336a54d-038b-4685-ab02-99bb52d3fb8b}\Instance\	Explorer.EXE
Key created	\REGISTRY\USER\S-1-5-21-1194130065-3471212556-1656947724-1000_Classes\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}\Instance\	Explorer.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
1180	schtasks.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
460	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe
1764	RegSvcs.exe
1764	RegSvcs.exe
1764	RegSvcs.exe
1764	RegSvcs.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe
2792	wlanext.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1764	RegSvcs.exe
1764	RegSvcs.exe
1764	RegSvcs.exe
2792	wlanext.exe
2792	wlanext.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	460	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe
Token: SeDebugPrivilege	1764	RegSvcs.exe
Token: SeShutdownPrivilege	3592	Explorer.EXE
Token: SeCreatePagefilePrivilege	3592	Explorer.EXE
Token: SeShutdownPrivilege	3592	Explorer.EXE
Token: SeCreatePagefilePrivilege	3592	Explorer.EXE
Token: SeShutdownPrivilege	3592	Explorer.EXE
Token: SeCreatePagefilePrivilege	3592	Explorer.EXE
Token: SeShutdownPrivilege	3592	Explorer.EXE
Token: SeCreatePagefilePrivilege	3592	Explorer.EXE
Token: SeDebugPrivilege	2792	wlanext.exe

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3592	Explorer.EXE

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 460 wrote to memory of 1180	460	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	105
PID 460 wrote to memory of 1180	460	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	105
PID 460 wrote to memory of 1180	460	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	105
PID 460 wrote to memory of 1764	460	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	107
PID 460 wrote to memory of 1764	460	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	107
PID 460 wrote to memory of 1764	460	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	107
PID 460 wrote to memory of 1764	460	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	107
PID 460 wrote to memory of 1764	460	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	107
PID 460 wrote to memory of 1764	460	98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe	107
PID 3592 wrote to memory of 2792	3592	Explorer.EXE	108
PID 3592 wrote to memory of 2792	3592	Explorer.EXE	108
PID 3592 wrote to memory of 2792	3592	Explorer.EXE	108
PID 2792 wrote to memory of 3656	2792	wlanext.exe	110
PID 2792 wrote to memory of 3656	2792	wlanext.exe	110
PID 2792 wrote to memory of 3656	2792	wlanext.exe	110

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3592
- C:\Users\Admin\AppData\Local\Temp\98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe
  "C:\Users\Admin\AppData\Local\Temp\98a6a5e789c33737c74f6ee52fce41a206867e571c8b8286d3af6f37174dceea.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:460
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\yKszcAoHaHN" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEBC.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:1180
- - 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
    PID:1764
- C:\Windows\SysWOW64\wlanext.exe
  "C:\Windows\SysWOW64\wlanext.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:2792
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3656

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
1KB

MD5
b194217d841a7e39267ff8998626a10f

SHA1
25d50912e7f3e3cc605f08b569a51e4a349e3823

SHA256
ce4d89ec9f79c07312c232c274ec64e8108bc334130ff4e745a5039a218626c9

SHA512
08d7283b549e28a72b4049dc553da502cc2fc46eaa0894ba8de6cc7c4aec632742fdc46f1d12d3a9cdef3a04ca1c35110a5032be7ea6db01cab501ecb6c64fcc

Download Submit
memory/460-12-0x0000000001740000-0x000000000178A000-memory.dmp

Filesize
296KB

Download
memory/460-5-0x0000000005B90000-0x0000000005B9A000-memory.dmp

Filesize
40KB

Download
memory/460-1-0x0000000000E40000-0x0000000000F52000-memory.dmp

Filesize
1.1MB

Download
memory/460-4-0x0000000005A90000-0x0000000005B22000-memory.dmp

Filesize
584KB

Download
memory/460-8-0x0000000005D60000-0x0000000005D86000-memory.dmp

Filesize
152KB

Download
memory/460-6-0x0000000005C00000-0x0000000005C56000-memory.dmp

Filesize
344KB

Download
memory/460-7-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/460-20-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/460-9-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/460-10-0x0000000074570000-0x0000000074D20000-memory.dmp

Filesize
7.7MB

Download
memory/460-11-0x0000000006EF0000-0x0000000006F82000-memory.dmp

Filesize
584KB

Download
memory/460-0-0x000000007457E000-0x000000007457F000-memory.dmp

Filesize
4KB

Download
memory/460-3-0x0000000006040000-0x00000000065E4000-memory.dmp

Filesize
5.6MB

Download
memory/460-2-0x00000000059F0000-0x0000000005A8C000-memory.dmp

Filesize
624KB

Download
memory/1764-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1764-21-0x0000000001730000-0x0000000001A7A000-memory.dmp

Filesize
3.3MB

Download
memory/1764-23-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1764-24-0x00000000016F0000-0x0000000001704000-memory.dmp

Filesize
80KB

Download
memory/2792-28-0x0000000000A60000-0x0000000000A77000-memory.dmp

Filesize
92KB

Download
memory/2792-26-0x0000000000A60000-0x0000000000A77000-memory.dmp

Filesize
92KB

Download
memory/2792-29-0x0000000001100000-0x000000000112E000-memory.dmp

Filesize
184KB

Download
memory/3592-25-0x0000000008FE0000-0x0000000009124000-memory.dmp

Filesize
1.3MB

Download
memory/3592-30-0x0000000008FE0000-0x0000000009124000-memory.dmp

Filesize
1.3MB

Download
memory/3592-32-0x0000000009230000-0x00000000092FB000-memory.dmp

Filesize
812KB

Download
memory/3592-33-0x0000000009230000-0x00000000092FB000-memory.dmp

Filesize
812KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads