MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a3b7e19a12b9364599488961a3fff8a906cdf3c8805efbf17c09744e4bb89ce8. 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: 11


Intelligence 11 IOCs YARA 2 File information Comments
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SHA256 hash: a3b7e19a12b9364599488961a3fff8a906cdf3c8805efbf17c09744e4bb89ce8
SHA3-384 hash: f381c0ffc2573df53243a10aa8ba48c4719b423444a8f994c544b66cf7f1622704acbb0a5486ac2ad83b7f1343f3d78e
SHA1 hash: ef2a62223573b0eb0bb6773a60a0479e3690ba93
MD5 hash: 09c21147cf22125838da13dbb42d2ea1
humanhash: quiet-don-ceiling-six
File name:REQ_INACV-0022_005REQ282022.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:770'560 bytes
First seen:2022-07-28 03:22:10 UTC
Last seen:2022-07-28 03:50:51 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'653 x AgentTesla, 19'464 x Formbook, 12'205 x SnakeKeylogger)
ssdeep 12288:Xdif7rHugGpbP/PgwCiGVeDR0DSZWblZeESlg9I4UH373f/F9OlwqGLMbI9:NifHkpP6Je1zZ2ZeEVI4UH37F9O+q8wI
TLSH T179F4F112A9A94236E82DC377843750B813B22C1651E7E71CBEC93DEE563BF4C4E45A93
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13101/52/3)
9.2% (.EXE) Win64 Executable (generic) (10523/12/4)
5.7% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
3.9% (.EXE) Win32 Executable (generic) (4505/5/1)
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
248
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
REQ_INACV-0022_005REQ282022.XLSX.Z
Verdict:
Malicious activity
Analysis date:
2022-07-28 07:06:18 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/6ba3dc51-e58f-4a0e-b413-18bef3c18a63

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/294799/
Detection(s):
SecuriteInfo.com.W32.AIDetectNet.01.14072.21715.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Creating a window
Sending a custom TCP request
Unauthorized injection to a recently created process
Creating a file
Launching the process to change network settings
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/62e201537dd0cb902f089183/reports/5ca296e3-6e3e-4447-a69e-0e33249c0e04/overview
Result
Verdict:
UNKNOWN
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Formbook
Create hunting rule
Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/6e6b86a7-e54f-475c-b260-c03c5725e10a
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1042237
Signature
.NET source code contains potential unpacker
C2 URLs / IPs found in malware configuration
Injects a PE file into a foreign processes
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)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for submitted file
Performs DNS queries to domains with low reputation
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Snort IDS alert for network traffic
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 harvest and steal browser information (history, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 674731 Sample: REQ_INACV-0022_005REQ282022.exe Startdate: 28/07/2022 Architecture: WINDOWS Score: 100 31 www.ratesystems.com 2->31 33 www.pdxwweojsnyhuaj.com 2->33 35 6 other IPs or domains 2->35 39 Snort IDS alert for network traffic 2->39 41 Multi AV Scanner detection for domain / URL 2->41 43 Malicious sample detected (through community Yara rule) 2->43 45 8 other signatures 2->45 9 REQ_INACV-0022_005REQ282022.exe 3 2->9         started        signatures3 process4 file5 23 C:\...\REQ_INACV-0022_005REQ282022.exe.log, ASCII 9->23 dropped 55 Injects a PE file into a foreign processes 9->55 13 REQ_INACV-0022_005REQ282022.exe 9->13         started        signatures6 process7 signatures8 57 Modifies the context of a thread in another process (thread injection) 13->57 59 Maps a DLL or memory area into another process 13->59 61 Sample uses process hollowing technique 13->61 63 Queues an APC in another process (thread injection) 13->63 16 explorer.exe 13->16 injected process9 dnsIp10 25 www.spreparadas.com 192.64.115.199, 49827, 80 NAMECHEAP-NETUS United States 16->25 27 sams-climas.com 198.49.74.82, 49841, 49842, 80 DIMENOCUS United States 16->27 29 www.sams-climas.com 16->29 37 System process connects to network (likely due to code injection or exploit) 16->37 20 cmmon32.exe 13 16->20         started        signatures11 process12 signatures13 47 Tries to steal Mail credentials (via file / registry access) 20->47 49 Tries to harvest and steal browser information (history, passwords, etc) 20->49 51 Modifies the context of a thread in another process (thread injection) 20->51 53 Maps a DLL or memory area into another process 20->53
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a3b7e19a12b9364599488961a3fff8a906cdf3c8805efbf17c09744e4bb89ce8/
Threat name:
ByteCode-MSIL.Trojan.FormBook
Create hunting rule
Status:
Malicious
First seen:
2022-07-28 02:28:36 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
22 of 26 (84.62%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uo36dgqsxe3elgkirfq2h77yvedm346iqbppx4l4bf2e4s5yttua._file
Result
Malware family:
n/a
Score:
  7/10
Tags:
spyware stealer
Link:
https://tria.ge/reports/220728-dxf8wsgaa5/
Behaviour
Checks processor information in registry
Enumerates system info in registry
Modifies Internet Explorer settings
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
Drops file in System32 directory
Suspicious use of SetThreadContext
Checks computer location settings
Reads user/profile data of web browsers
Unpacked files
SH256 hash:
6ce10d30b65cac63418339d3879111491ae54e372dde759f5bf054208772a996
MD5 hash:
730ca8085730ec0b18958b3c6b090770
SHA1 hash:
c3d7f5a7a4e0ee928c471b9b0c202aecc764d2fb
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/e6f0d5fd-587b-439d-8e83-56fdd5cc67c8/
Parent samples :
bd9dc1d877edc4b2ab86b6b558a2154f26a16207615f5b536c1d008e32795c93
a3b7e19a12b9364599488961a3fff8a906cdf3c8805efbf17c09744e4bb89ce8
b9f03efb1bd75e69ea854f15bb0bffc77d8fd67af95daca3b4b7f709ea7441da
8c6c03179e67fefa80d6958194a77f1b5198fc859151da0748217c3eff5ca38f
9cd3e493e25dfb86a8e0a80be3734072f3401e67a45e65109262fef40d40cff2
56d23db02a878b0ad4bf55573cb6ba4517004192f5ec4da49c43619925b9eaac
SH256 hash:
39c2d879c57f07305ce60412dc8a88f02e51f1a14a06cc605768d1d7f5313807
MD5 hash:
db51fe170a9e5d6ec5429a2fbd9d0353
SHA1 hash:
e30a58125fc41322db6cf2ccb6a6d414ed379016
Link:
https://www.unpac.me/results/e6f0d5fd-587b-439d-8e83-56fdd5cc67c8/
SH256 hash:
a9c5b2c628a47247402ff05d399855caf6f6a22146d44cd0fd9d7fc05a65ba66
MD5 hash:
228ff1006be83039e4de2b5e0475a5b0
SHA1 hash:
3adef5cc343067fa6b9d5e712114dc619c867a72
Link:
https://www.unpac.me/results/e6f0d5fd-587b-439d-8e83-56fdd5cc67c8/
SH256 hash:
c776d92e645c354f8e7c20e8c41253e78d60ca76003d0e1b896f42ed9bafb3b2
MD5 hash:
266654f2a7a39eef8d7c048e65cabee9
SHA1 hash:
1d4a97086f1cf8c8d174ca6bedac12d69a65baba
Link:
https://www.unpac.me/results/e6f0d5fd-587b-439d-8e83-56fdd5cc67c8/
SH256 hash:
6e2f22b44eaedce63d5a6ba1118ddf339f09d02a31ba7c5794a7d08b2a123574
MD5 hash:
6c8ef7ffc5086ec21eb5b69aec0250d9
SHA1 hash:
109eab0ca264e48a6c02ec2864985e845b3df1f1
Link:
https://www.unpac.me/results/e6f0d5fd-587b-439d-8e83-56fdd5cc67c8/
SH256 hash:
a3b7e19a12b9364599488961a3fff8a906cdf3c8805efbf17c09744e4bb89ce8
MD5 hash:
09c21147cf22125838da13dbb42d2ea1
SHA1 hash:
ef2a62223573b0eb0bb6773a60a0479e3690ba93
Link:
https://www.unpac.me/results/e6f0d5fd-587b-439d-8e83-56fdd5cc67c8/
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:pe_imphash
Create hunting rule
Rule name:Skystars_Malware_Imphash
Create hunting rule
Author:Skystars LightDefender
Description:imphash

File information

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

Malspam

Formbook

Executable exe a3b7e19a12b9364599488961a3fff8a906cdf3c8805efbf17c09744e4bb89ce8

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/294799/

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