MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a2ef1147fb83cc34277e15d885f20bbdd4262459f6da12c607f5b5d90bfcb041. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Formbook


Vendor detections: 13


Intelligence 13 IOCs YARA File information Comments

SHA256 hash: a2ef1147fb83cc34277e15d885f20bbdd4262459f6da12c607f5b5d90bfcb041
SHA3-384 hash: 7139391308445ca9aaebf2dbc1e605e2b7a0de8367e9773524e840cab7469cdf133f32a6f9e54f30bf0f5f9969df2453
SHA1 hash: 8350259be28d7f1966e85d185b02e682fd82747c
MD5 hash: 71085f06dbf713e56f928f1c60d20ee3
humanhash: nine-golf-lemon-neptune
File name:71085f06dbf713e56f928f1c60d20ee3.exe
Download: download sample
Signature Formbook
File size:506'871 bytes
First seen:2022-02-09 16:13:10 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 099c0646ea7282d232219f8807883be0 (476 x Formbook, 210 x Loki, 107 x AgentTesla)
ssdeep 12288:99Z6Vh5xgJbZ3HxORkEE8T+BFdi/NJ7fb3LUA5hMs2f:3Z663HxqkEYBeJ7bjh2f
Threatray 13'174 similar samples on MalwareBazaar
TLSH T160B4AEE7F90055F2DC3F8473B53B88692BB76CBE82F864462AD97B050891572953BC0B
File icon (PE):PE icon
dhash icon e0c4a696969ac4f0 (13 x Formbook, 1 x GuLoader)
Reporter abuse_ch
Tags:exe FormBook

Intelligence


File Origin
# of uploads :
1
# of downloads :
219
Origin country :
n/a
Vendor Threat Intelligence
Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Сreating synchronization primitives
Launching a process
Launching cmd.exe command interpreter
Searching for synchronization primitives
DNS request
Sending an HTTP GET request
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Unauthorized injection to a system process
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
control.exe overlay packed shell32.dll
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Result
Threat name:
FormBook
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Signature
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Found malware configuration
Injects a PE file into a foreign processes
Malicious sample detected (through community Yara rule)
Maps a DLL or memory area into another process
Modifies the context of a thread in another process (thread injection)
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
System process connects to network (likely due to code injection or exploit)
Tries to detect virtualization through RDTSC time measurements
Yara detected FormBook
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 569593 Sample: aHjTfaldao.exe Startdate: 09/02/2022 Architecture: WINDOWS Score: 100 34 www.plugandplaychallenge.net 2->34 36 www.griffin-intl-ltd.com 2->36 38 2 other IPs or domains 2->38 54 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->54 56 Found malware configuration 2->56 58 Malicious sample detected (through community Yara rule) 2->58 60 4 other signatures 2->60 12 aHjTfaldao.exe 19 2->12         started        signatures3 process4 file5 32 C:\Users\user\AppData\...\ibmrsypuyo.exe, PE32 12->32 dropped 15 ibmrsypuyo.exe 12->15         started        process6 signatures7 70 Multi AV Scanner detection for dropped file 15->70 72 Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors) 15->72 74 Tries to detect virtualization through RDTSC time measurements 15->74 76 Injects a PE file into a foreign processes 15->76 18 ibmrsypuyo.exe 15->18         started        process8 signatures9 46 Modifies the context of a thread in another process (thread injection) 18->46 48 Maps a DLL or memory area into another process 18->48 50 Sample uses process hollowing technique 18->50 52 Queues an APC in another process (thread injection) 18->52 21 explorer.exe 18->21 injected process10 dnsIp11 40 hollywoodzeal.com 162.213.255.35, 49828, 80 NAMECHEAP-NETUS United States 21->40 42 www.yayouhuo.com 156.237.242.203, 49823, 80 DXTL-HKDXTLTseungKwanOServiceHK Seychelles 21->42 44 5 other IPs or domains 21->44 62 System process connects to network (likely due to code injection or exploit) 21->62 25 explorer.exe 21->25         started        signatures12 process13 signatures14 64 Modifies the context of a thread in another process (thread injection) 25->64 66 Maps a DLL or memory area into another process 25->66 68 Tries to detect virtualization through RDTSC time measurements 25->68 28 cmd.exe 1 25->28         started        process15 process16 30 conhost.exe 28->30         started       
Threat name:
Win32.Trojan.GenericML
Status:
Malicious
First seen:
2022-02-09 16:14:11 UTC
File Type:
PE (Exe)
Extracted files:
3
AV detection:
13 of 27 (48.15%)
Threat level:
  5/5
Result
Malware family:
xloader
Score:
  10/10
Tags:
family:xloader campaign:asus loader rat suricata
Behaviour
Checks processor information in registry
Modifies data under HKEY_USERS
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: GetForegroundWindowSpam
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Drops file in Windows directory
Suspicious use of SetThreadContext
Loads dropped DLL
Executes dropped EXE
Xloader Payload
suricata: ET MALWARE FormBook CnC Checkin (GET)
Xloader
Unpacked files
SH256 hash:
69c1a335725aa24690ac2bc3806925f655aa42ff08f173422c90342396a7bb5d
MD5 hash:
40912b7e4b7d46e812b90fd56fd7e4e4
SHA1 hash:
31eeb4f6afb8279871a55ad8db7b7a0efb8c3b58
SH256 hash:
502a5d10693ad85aae649cd37e7395bb4f5cc7a9a422641b387f44361d28a71b
MD5 hash:
f3a72bdb80fe11c30535f8a3da0cf621
SHA1 hash:
0b8c6e863be90942a6a00dcbca175be160ab0ba1
SH256 hash:
a2ef1147fb83cc34277e15d885f20bbdd4262459f6da12c607f5b5d90bfcb041
MD5 hash:
71085f06dbf713e56f928f1c60d20ee3
SHA1 hash:
8350259be28d7f1966e85d185b02e682fd82747c
Malware family:
XLoader
Verdict:
Malicious
Please note that we are no longer able to provide a coverage score for Virus Total.

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Formbook

Executable exe a2ef1147fb83cc34277e15d885f20bbdd4262459f6da12c607f5b5d90bfcb041

(this sample)

  
Delivery method
Distributed via web download

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