formbook | 530510ea2c39f0e2984eb108dd91b31fa861718d9d875aaf353f6574aa433647

Analysis

max time kernel
148s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-12-2024 14:03

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General

Target

8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
Size

458KB
MD5

b9d18f0b735dea8d38a0b7cc9db54546
SHA1

46b618a3134e02b343536c3c35fb44c64d1150c4
SHA256

8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9
SHA512

ac92fbe7548d7eb60bc2232497ce08fbea5eed4d5a6ac488ff8a89d7d80b51392dec8012d935b81536bf31d36a521302405a85a34c3c908111f67ce4839a832e
SSDEEP

6144:ZxlZd712A3TemiYjAKD+DrL/f01XcnNRHolwNADBuHzo1N8L:Hl7oE7iCAc+/L/cZPlgSBuTo1

Score

10^/10

formbook xloader ah5g discovery loader rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Campaign

ah5g

Decoy

wReSyw0+RXB9dOy3kw==

Mje7ZN4AqSDHqWC1

5l8DIF3lJCgYq1grAXaPXqfyVHnB

2yzJ2v0xCurT2fvWrRcjCzblO9c=

GA0puQ1MMi53/hai

HcK10MEkj/my0vq6

/eYRSqPBgN5mIFYdwhhNPx4qKcA=

QrJjn3pVSWJS6475YqG+m+dcqQpGhro=

/PIhV6hz2lTnpEqs

IfnU8x2W9a3nm8s=

oyfXKKI/e2Z1pbd5V/qLNnOhqQ==

CAUhKPVikYla3ZNZPMVP3EUxEzuktfKD8A==

7CHCZd4BqyDHqWC1

3zzpmQsz8GTjBrKZIldeuv0=

gv+8bdOi/XLc9Jgmzak1

DHUSvjFMIJpgmNCkn4lab6dr

YLszW53Yz3/NTUVOuww=

PNN6m5J7Uoodo1bFQrPcNnOhqQ==

E5pVg8MGG+NEbQNOH+WLNnOhqQ==

GO/g98tDkI6CdOy3kw==

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook
Xloader
Xloader is a rebranded version of Formbook malware.
loader xloader
Xloader family
xloader

Xloader payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/4044-37-0x0000000000400000-0x000000000042D000-memory.dmp	xloader
behavioral2/memory/4044-42-0x0000000000400000-0x000000000042D000-memory.dmp	xloader
behavioral2/memory/4044-46-0x0000000000400000-0x000000000042D000-memory.dmp	xloader
behavioral2/memory/4056-53-0x0000000000610000-0x000000000063D000-memory.dmp	xloader

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-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe

Suspicious use of SetThreadContext 4 IoCs

description	pid	Process	procid_target
PID 4768 set thread context of 4044	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	100
PID 4044 set thread context of 3360	4044	InstallUtil.exe	55
PID 4044 set thread context of 3360	4044	InstallUtil.exe	55
PID 4056 set thread context of 3360	4056	rundll32.exe	55

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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe

Suspicious behavior: EnumeratesProcesses 60 IoCs

pid	Process
1836	powershell.exe
1836	powershell.exe
4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
4044	InstallUtil.exe
4044	InstallUtil.exe
4044	InstallUtil.exe
4044	InstallUtil.exe
4044	InstallUtil.exe
4044	InstallUtil.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe
4056	rundll32.exe

Suspicious behavior: MapViewOfSection 6 IoCs

pid	Process
4044	InstallUtil.exe
4044	InstallUtil.exe
4044	InstallUtil.exe
4044	InstallUtil.exe
4056	rundll32.exe
4056	rundll32.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	1836	powershell.exe
Token: SeDebugPrivilege	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
Token: SeDebugPrivilege	4044	InstallUtil.exe
Token: SeDebugPrivilege	4056	rundll32.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4768 wrote to memory of 1836	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	83
PID 4768 wrote to memory of 1836	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	83
PID 4768 wrote to memory of 1836	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	83
PID 4768 wrote to memory of 3152	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	99
PID 4768 wrote to memory of 3152	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	99
PID 4768 wrote to memory of 3152	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	99
PID 4768 wrote to memory of 4044	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	100
PID 4768 wrote to memory of 4044	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	100
PID 4768 wrote to memory of 4044	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	100
PID 4768 wrote to memory of 4044	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	100
PID 4768 wrote to memory of 4044	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	100
PID 4768 wrote to memory of 4044	4768	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	100
PID 3360 wrote to memory of 4056	3360	Explorer.EXE	103
PID 3360 wrote to memory of 4056	3360	Explorer.EXE	103
PID 3360 wrote to memory of 4056	3360	Explorer.EXE	103
PID 4056 wrote to memory of 3368	4056	rundll32.exe	105
PID 4056 wrote to memory of 3368	4056	rundll32.exe	105
PID 4056 wrote to memory of 3368	4056	rundll32.exe	105

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3360
- C:\Users\Admin\AppData\Local\Temp\8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
  "C:\Users\Admin\AppData\Local\Temp\8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.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:4768
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMgAwAA==
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1836
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    3⤵
    PID:3152
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:4044
- C:\Windows\SysWOW64\rundll32.exe
  "C:\Windows\SysWOW64\rundll32.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:4056
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:3368

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cleueshx.itw.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/1836-28-0x0000000007950000-0x0000000007FCA000-memory.dmp

Filesize
6.5MB

Download
memory/1836-24-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/1836-36-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/1836-32-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/1836-26-0x0000000006100000-0x000000000611E000-memory.dmp

Filesize
120KB

Download
memory/1836-29-0x0000000006610000-0x000000000662A000-memory.dmp

Filesize
104KB

Download
memory/1836-27-0x00000000063F0000-0x000000000643C000-memory.dmp

Filesize
304KB

Download
memory/1836-8-0x0000000002B40000-0x0000000002B76000-memory.dmp

Filesize
216KB

Download
memory/1836-9-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/1836-11-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/1836-10-0x00000000052C0000-0x00000000058E8000-memory.dmp

Filesize
6.2MB

Download
memory/1836-12-0x0000000005960000-0x0000000005982000-memory.dmp

Filesize
136KB

Download
memory/1836-14-0x0000000005AE0000-0x0000000005B46000-memory.dmp

Filesize
408KB

Download
memory/1836-13-0x0000000005A00000-0x0000000005A66000-memory.dmp

Filesize
408KB

Download
memory/1836-25-0x0000000005B50000-0x0000000005EA4000-memory.dmp

Filesize
3.3MB

Download
memory/3360-49-0x0000000007E20000-0x0000000007F69000-memory.dmp

Filesize
1.3MB

Download
memory/3360-48-0x0000000002C00000-0x0000000002CF4000-memory.dmp

Filesize
976KB

Download
memory/3360-58-0x0000000008B50000-0x0000000008CA2000-memory.dmp

Filesize
1.3MB

Download
memory/3360-54-0x0000000002C00000-0x0000000002CF4000-memory.dmp

Filesize
976KB

Download
memory/3360-44-0x0000000007E20000-0x0000000007F69000-memory.dmp

Filesize
1.3MB

Download
memory/4044-37-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/4044-46-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/4044-47-0x0000000000A70000-0x0000000000A81000-memory.dmp

Filesize
68KB

Download
memory/4044-42-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/4044-40-0x0000000000AD0000-0x0000000000E1A000-memory.dmp

Filesize
3.3MB

Download
memory/4044-43-0x00000000005F0000-0x0000000000601000-memory.dmp

Filesize
68KB

Download
memory/4056-50-0x00000000008D0000-0x00000000008E4000-memory.dmp

Filesize
80KB

Download
memory/4056-52-0x00000000008D0000-0x00000000008E4000-memory.dmp

Filesize
80KB

Download
memory/4056-53-0x0000000000610000-0x000000000063D000-memory.dmp

Filesize
180KB

Download
memory/4768-31-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/4768-39-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/4768-3-0x0000000005570000-0x0000000005602000-memory.dmp

Filesize
584KB

Download
memory/4768-4-0x0000000074560000-0x0000000074D10000-memory.dmp

Filesize
7.7MB

Download
memory/4768-1-0x0000000000AE0000-0x0000000000B58000-memory.dmp

Filesize
480KB

Download
memory/4768-0-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/4768-30-0x000000007456E000-0x000000007456F000-memory.dmp

Filesize
4KB

Download
memory/4768-5-0x0000000005550000-0x000000000555A000-memory.dmp

Filesize
40KB

Download
memory/4768-2-0x0000000005A80000-0x0000000006024000-memory.dmp

Filesize
5.6MB

Download
memory/4768-7-0x0000000005A30000-0x0000000005A7C000-memory.dmp

Filesize
304KB

Download
memory/4768-6-0x0000000006730000-0x000000000679A000-memory.dmp

Filesize
424KB

Download