MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 898746d8c0bc244b1a1b7ad40e440bc2ea3ad1f058c5782e4d043ff61add8235. 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
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 898746d8c0bc244b1a1b7ad40e440bc2ea3ad1f058c5782e4d043ff61add8235
SHA3-384 hash: 446ed20a56f82f09804d75f7c5e80ac4e5d9231b0a8de46be876b0f82903bcc669c58bf4be1324071e730c294c2cb977
SHA1 hash: bd43cb3d008f68d2851f0a68e96a0fbdd77ce739
MD5 hash: fa0c4a673fba23a29d6416bac21c9c43
humanhash: march-connecticut-edward-virginia
File name:PO210121.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:836'608 bytes
First seen:2021-01-21 08:24:42 UTC
Last seen:2021-01-21 10:15:17 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'607 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 24576:yZgYUGwzgLkVu2iP45INniaUKTKAdDdciI:UgYUnCkoDMQkKThNdc
Threatray 3'607 similar samples on MalwareBazaar
TLSH FA058DAD725076EFC867C872CAA81C64EB60A577430BD203A46716ECEE4D59BDF140F2
Reporter Anonymous
Tags:FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
126
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
PO210121.exe
Verdict:
Malicious activity
Analysis date:
2021-01-21 08:26:41 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/3e94068e-20ef-45ce-a9a2-719b4dea16b6

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
Formbook
Create hunting rule
Link:
https://www.capesandbox.com/analysis/113237/
Detection(s):
SecuriteInfo.com.Trojan.Packed2.42809.5997.4035.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a UDP request
Creating a file in the %AppData% directory
Enabling the 'hidden' option for recently created files
Adding an access-denied ACE
Creating a file in the %temp% directory
Launching a process
Creating a process with a hidden window
Deleting a recently created file
Unauthorized injection to a recently created process
Creating a file
Launching cmd.exe command interpreter
Enabling autorun by creating a file
Unauthorized injection to a system process
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
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/587030
Signature
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found malware configuration
Machine Learning detection for dropped file
Machine Learning detection for sample
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)
Modifies the prolog of user mode functions (user mode inline hooks)
Multi AV Scanner detection for submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Sigma detected: Scheduled temp file as task from temp location
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 sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected AntiVM_3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 342536 Sample: PO210121.exe Startdate: 21/01/2021 Architecture: WINDOWS Score: 100 41 www.jomelvendivel.com 2->41 49 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->49 51 Found malware configuration 2->51 53 Malicious sample detected (through community Yara rule) 2->53 55 9 other signatures 2->55 11 PO210121.exe 7 2->11         started        signatures3 process4 file5 33 C:\Users\user\AppData\...behaviorgraphFZWvfDfYk.exe, PE32 11->33 dropped 35 C:\Users\...behaviorgraphFZWvfDfYk.exe:Zone.Identifier, ASCII 11->35 dropped 37 C:\Users\user\AppData\Local\...\tmpC600.tmp, XML 11->37 dropped 39 C:\Users\user\AppData\...\PO210121.exe.log, ASCII 11->39 dropped 65 Detected unpacking (changes PE section rights) 11->65 67 Detected unpacking (overwrites its own PE header) 11->67 69 Tries to detect virtualization through RDTSC time measurements 11->69 15 PO210121.exe 11->15         started        18 schtasks.exe 1 11->18         started        signatures6 process7 signatures8 71 Modifies the context of a thread in another process (thread injection) 15->71 73 Maps a DLL or memory area into another process 15->73 75 Sample uses process hollowing technique 15->75 77 Queues an APC in another process (thread injection) 15->77 20 explorer.exe 15->20 injected 24 conhost.exe 18->24         started        process9 dnsIp10 43 mak-bauunternehmung.com 81.169.145.90, 49741, 80 STRATOSTRATOAGDE Germany 20->43 45 www.thefashiondaily.net 45.33.35.221, 49738, 80 LINODE-APLinodeLLCUS United States 20->45 47 6 other IPs or domains 20->47 57 System process connects to network (likely due to code injection or exploit) 20->57 26 cmmon32.exe 20->26         started        signatures11 process12 signatures13 59 Modifies the context of a thread in another process (thread injection) 26->59 61 Maps a DLL or memory area into another process 26->61 63 Tries to detect virtualization through RDTSC time measurements 26->63 29 cmd.exe 1 26->29         started        process14 process15 31 conhost.exe 29->31         started       
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/898746d8c0bc244b1a1b7ad40e440bc2ea3ad1f058c5782e4d043ff61add8235/
Threat name:
ByteCode-MSIL.Packed.Confuser
Create hunting rule
Status:
Malicious
First seen:
2021-01-21 08:25:08 UTC
AV detection:
17 of 44 (38.64%)
Threat level:
  1/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=rgdunwgaxqsewgq3plka4ralylvdvupqldcxqlsnaq77mgw5qi2q._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
0d41517fe048b21edfd59458b0dc8966e53daacdb7e7c5a7bdc7dab5bf233bd1
Formbook
2570b1f0780a754b70c2ec5525da16952c9634a2da6b21c92693380529daffe2
Formbook
458bd08f0c32719adc9d2858721b609b136ff0e21c2f3ac3f4be4f97e4084b7a
Formbook
5adeb6184ee1dffad88ac180f1e7dcbd6f451fc8dcd5e868906fca11d98476ef
Formbook
62713d398ac2401fa51569449d65c583fb907a316c134897c21ebfa71ae36f2a
Formbook
7a47a855968f4e82d6cc2d35186d2d56468701bc5587cc87f82a847bd2c45ae5
Formbook
82c118d71fb0433b051b37a040f31f2455ceb3ddd01b7d314cf6b1f4648d454d
Formbook
99aae5746d65a99f7d5f1f289d0acebde486e580abfe29976806204b23de6b8d
Formbook
b6dc1192212d0ae4c5509491a96602f9c3da82694097372e9bf5ae03ca86adba
Formbook
b7f9546fa9fb928d856b69a70174d693a84c641ad193e88e48c07cdb92751e03
Formbook
+ 3'597 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook ransomware rat spyware stealer trojan
Link:
https://tria.ge/reports/210121-vevgd1yqn2/
Behaviour
Creates scheduled task(s)
Suspicious behavior: EnumeratesProcesses
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Suspicious use of UnmapMainImage
Enumerates physical storage devices
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
Malware Config
C2 Extraction:
http://www.adamjbrowne.com/knb/
Unpacked files
SH256 hash:
e36c54384773ca50c45fdad601274ff6c084487c4e5894316e25b6a8c0a3350c
MD5 hash:
81ee3caeeb544096a33c16da69679371
SHA1 hash:
ea706a60f5299116512e2a657cfbb49edc447c70
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/3aa2bcf6-0da3-469f-800a-7d7a33abef2e/
Parent samples :
0d41517fe048b21edfd59458b0dc8966e53daacdb7e7c5a7bdc7dab5bf233bd1
99aae5746d65a99f7d5f1f289d0acebde486e580abfe29976806204b23de6b8d
82c118d71fb0433b051b37a040f31f2455ceb3ddd01b7d314cf6b1f4648d454d
898746d8c0bc244b1a1b7ad40e440bc2ea3ad1f058c5782e4d043ff61add8235
57cfa9ebc3f12db279f1303ceffc86e3ba3a12505f787d8453f200306319e145
SH256 hash:
16d877161e7a05a6b6923b2511964965fb962d494502237e6870fd7e0a94a5ad
MD5 hash:
7b02ff6b625adec8fe496c47b8319b0e
SHA1 hash:
ed4f710fbbfa66c4c19f58b1d3088926c6f22853
Link:
https://www.unpac.me/results/3aa2bcf6-0da3-469f-800a-7d7a33abef2e/
SH256 hash:
41895dff9a337de9d4844f9cd04b72787e2fa5f37a6292d9c38394b994b11c64
MD5 hash:
1c05dbfaaf0add50122f016def585b43
SHA1 hash:
bb74112c066146cf0a50f4661de923e08431223c
Link:
https://www.unpac.me/results/3aa2bcf6-0da3-469f-800a-7d7a33abef2e/
SH256 hash:
898746d8c0bc244b1a1b7ad40e440bc2ea3ad1f058c5782e4d043ff61add8235
MD5 hash:
fa0c4a673fba23a29d6416bac21c9c43
SHA1 hash:
bd43cb3d008f68d2851f0a68e96a0fbdd77ce739
Link:
https://www.unpac.me/results/3aa2bcf6-0da3-469f-800a-7d7a33abef2e/
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/898746d8c0bc244b1a1b7ad40e440bc2ea3ad1f058c5782e4d043ff61add8235

File information

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

Cape
Cape
https://www.capesandbox.com/analysis/113237/

Comments