formbook | 530510ea2c39f0e2984eb108dd91b31fa861718d9d875aaf353f6574aa433647

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 2 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/2656-15-0x0000000000400000-0x000000000042D000-memory.dmp	xloader
behavioral1/memory/2016-20-0x00000000000E0000-0x000000000010D000-memory.dmp	xloader

Suspicious use of SetThreadContext 3 IoCs

Processes:

8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exeInstallUtil.exeraserver.exe

description	pid	process	target process
PID 1956 set thread context of 2656	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 2656 set thread context of 1184	2656	InstallUtil.exe	Explorer.EXE
PID 2016 set thread context of 1184	2016	raserver.exe	Explorer.EXE

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

Processes:

8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exepowershell.exeraserver.execmd.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	raserver.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious behavior: EnumeratesProcesses 34 IoCs

Processes:

powershell.exe8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exeInstallUtil.exeraserver.exe

pid	process
2260	powershell.exe
1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
2656	InstallUtil.exe
2656	InstallUtil.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe
2016	raserver.exe

Suspicious behavior: MapViewOfSection 5 IoCs

Processes:

InstallUtil.exeraserver.exe

pid process

2656 InstallUtil.exe
2656 InstallUtil.exe
2656 InstallUtil.exe
2016 raserver.exe
2016 raserver.exe

pid	process
2656	InstallUtil.exe
2656	InstallUtil.exe
2656	InstallUtil.exe
2016	raserver.exe
2016	raserver.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

powershell.exe8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exeInstallUtil.exeraserver.exe

description	pid	process
Token: SeDebugPrivilege	2260	powershell.exe
Token: SeDebugPrivilege	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
Token: SeDebugPrivilege	2656	InstallUtil.exe
Token: SeDebugPrivilege	2016	raserver.exe

Suspicious use of WriteProcessMemory 29 IoCs

Processes:

8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exeExplorer.EXEraserver.exe

description	pid	process	target process
PID 1956 wrote to memory of 2260	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	powershell.exe
PID 1956 wrote to memory of 2260	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	powershell.exe
PID 1956 wrote to memory of 2260	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	powershell.exe
PID 1956 wrote to memory of 2260	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	powershell.exe
PID 1956 wrote to memory of 1668	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 1668	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 1668	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 1668	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 1668	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 1668	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 1668	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 2656	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 2656	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 2656	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 2656	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 2656	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 2656	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 2656	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 2656	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 2656	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1956 wrote to memory of 2656	1956	8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe	InstallUtil.exe
PID 1184 wrote to memory of 2016	1184	Explorer.EXE	raserver.exe
PID 1184 wrote to memory of 2016	1184	Explorer.EXE	raserver.exe
PID 1184 wrote to memory of 2016	1184	Explorer.EXE	raserver.exe
PID 1184 wrote to memory of 2016	1184	Explorer.EXE	raserver.exe
PID 2016 wrote to memory of 2348	2016	raserver.exe	cmd.exe
PID 2016 wrote to memory of 2348	2016	raserver.exe	cmd.exe
PID 2016 wrote to memory of 2348	2016	raserver.exe	cmd.exe
PID 2016 wrote to memory of 2348	2016	raserver.exe	cmd.exe

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:1184
- C:\Users\Admin\AppData\Local\Temp\8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe
  "C:\Users\Admin\AppData\Local\Temp\8df5da115c8287798fe9d01446bcad9e56020c15328257b305503f77ce1b8dd9.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1956
- - 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:2260
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
    3⤵
    PID:1668
- - 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:2656
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2536
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2548
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2584
- C:\Windows\SysWOW64\autofmt.exe
  "C:\Windows\SysWOW64\autofmt.exe"
  2⤵
  PID:2596
- C:\Windows\SysWOW64\raserver.exe
  "C:\Windows\SysWOW64\raserver.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:2016
- - 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:2348

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1184-18-0x0000000003B40000-0x0000000003C40000-memory.dmp

Filesize
1024KB

Download
memory/1956-16-0x0000000074940000-0x000000007502E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-0-0x000000007494E000-0x000000007494F000-memory.dmp

Filesize
4KB

Download
memory/1956-3-0x0000000000380000-0x00000000003EA000-memory.dmp

Filesize
424KB

Download
memory/1956-4-0x0000000000C80000-0x0000000000CCC000-memory.dmp

Filesize
304KB

Download
memory/1956-8-0x0000000074940000-0x000000007502E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-2-0x0000000074940000-0x000000007502E000-memory.dmp

Filesize
6.9MB

Download
memory/1956-1-0x0000000000CD0000-0x0000000000D48000-memory.dmp

Filesize
480KB

Download
memory/2016-20-0x00000000000E0000-0x000000000010D000-memory.dmp

Filesize
180KB

Download
memory/2016-19-0x0000000000F50000-0x0000000000F6C000-memory.dmp

Filesize
112KB

Download
memory/2260-7-0x0000000002A90000-0x0000000002AD0000-memory.dmp

Filesize
256KB

Download
memory/2260-9-0x0000000002A90000-0x0000000002AD0000-memory.dmp

Filesize
256KB

Download
memory/2656-10-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2656-15-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download
memory/2656-14-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2656-13-0x0000000000400000-0x000000000042D000-memory.dmp

Filesize
180KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads