MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 2a2187ae775f286c2400957b71aac1c550779fc6652a710d126546d4d4879f0f. 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 3 File information Comments
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SHA256 hash: 2a2187ae775f286c2400957b71aac1c550779fc6652a710d126546d4d4879f0f
SHA3-384 hash: a66103b30d9c0a15aca917edae6e27731257dc14bc1d8f636a899b3fc5f015db4c07036d18c421a45ea9088de6f6e6d2
SHA1 hash: c0548d4ed4a9c2b68fbcf592e9a892fa587d5b0e
MD5 hash: a445dd187c6dc7254da6d2f0d893f2fb
humanhash: foxtrot-beryllium-fourteen-chicken
File name:Document RFQ#8086A_461A_0000086_300_3550_2021.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:522'752 bytes
First seen:2021-10-19 06:35:03 UTC
Last seen:2021-10-19 06:56:58 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'652 x AgentTesla, 19'463 x Formbook, 12'204 x SnakeKeylogger)
ssdeep 12288:ogcvFMGTRKGUjCh6MCpMBWlzXu9TysHr6NOjqMIw+Nyqq9gdWf9od:qvAjCh6MCpnl+4xOOj3yqAgdio
TLSH T16EB4E1057651DD5FC81E4E3A44385C321A62A8678206F243AEC73EDF7E8D7C7861A35B
Reporter GovCERT_CH
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
2
# of downloads :
184
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
https://wildfire.paloaltonetworks.com/panos/sample/cloud/bFM3ZytZdTdKNVh4VklyL3l1bU9DOXdQVzdrajEyUERSSGJxNWp5b1NmcWtVOW4yemRpd0h2REhsNFF2NEZnU2NuWWx6OTJzZkpIYlNkdlpaYVZ4Qk5QYkNVekFNSk96Rm1FUGtwUWJjMW5BVFZpeDdmYmV5aVpXOUo3SGM4NktBZjR6NUkxODRVbWNYOWptRzRBNVV1djZIdnVXMU5zdUR3RkpVSVc2WHVnQUpNSDFpZmV1eEhWV0d0emY4QzJkbGd5d3M3L2Y5azd1ZERnUU91S0M5K2ZTRFVZYk1kbDk-
Verdict:
Malicious activity
Analysis date:
2021-10-19 08:32:02 UTC
Tags:
trojan formbook stealer
Link:
https://app.any.run/tasks/29150073-6dd7-4efc-a4c3-a90eb466e6b1

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/198395/
Detection(s):
SecuriteInfo.com.Trojan.Inject4.17696.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
Launching a process
Creating a file in the %temp% directory
Delayed writing of the file
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
67%
Tags:
obfuscated packed
Link:
https://www.filescan.io/uploads/616e675d9a5a1e91c5c56de7/reports/e515b73a-236c-4716-b272-19a109d3c692/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
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Verdict:
Malicious
Link:
https://analyze.intezer.com/analyses/b26a6f20-52e5-4fd6-95af-b8d9e90bc2a4
Result
Threat name:
FormBook
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Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/872868
Signature
C2 URLs / IPs found in malware configuration
Found malware configuration
Initial sample is a PE file and has a suspicious name
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)
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
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 AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 signatures2 2 Behavior Graph ID: 505294 Sample: Document RFQ#8086A_461A_000... Startdate: 19/10/2021 Architecture: WINDOWS Score: 100 45 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->45 47 Found malware configuration 2->47 49 Malicious sample detected (through community Yara rule) 2->49 51 10 other signatures 2->51 10 Document RFQ#8086A_461A_0000086_300_3550_2021.exe 7 2->10         started        process3 file4 31 C:\Users\user\AppData\...\BLhDhkGdnNl.exe, PE32 10->31 dropped 33 C:\Users\...\BLhDhkGdnNl.exe:Zone.Identifier, ASCII 10->33 dropped 35 C:\Users\user\AppData\Local\...\tmp7B51.tmp, XML 10->35 dropped 37 Document RFQ#8086A...0_3550_2021.exe.log, ASCII 10->37 dropped 13 Document RFQ#8086A_461A_0000086_300_3550_2021.exe 10->13         started        16 schtasks.exe 1 10->16         started        process5 signatures6 63 Modifies the context of a thread in another process (thread injection) 13->63 65 Maps a DLL or memory area into another process 13->65 67 Sample uses process hollowing technique 13->67 69 Queues an APC in another process (thread injection) 13->69 18 explorer.exe 13->18 injected 22 conhost.exe 16->22         started        process7 dnsIp8 39 r6-gytr.com 15.197.142.173, 49837, 80 TANDEMUS United States 18->39 41 www.zilliq.com 54.225.97.249, 49835, 80 AMAZON-AESUS United States 18->41 43 www.r6-gytr.com 18->43 53 System process connects to network (likely due to code injection or exploit) 18->53 24 control.exe 18->24         started        signatures9 process10 signatures11 55 Self deletion via cmd delete 24->55 57 Modifies the context of a thread in another process (thread injection) 24->57 59 Maps a DLL or memory area into another process 24->59 61 Tries to detect virtualization through RDTSC time measurements 24->61 27 cmd.exe 1 24->27         started        process12 process13 29 conhost.exe 27->29         started       
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/2a2187ae775f286c2400957b71aac1c550779fc6652a710d126546d4d4879f0f/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
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Status:
Malicious
First seen:
2021-10-19 06:36:17 UTC
AV detection:
13 of 45 (28.89%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=fiqypltxl4ugyjaasv5xdkwbyvihph6gmuvhcdismvdnjveht4hq._file
Verdict:
malicious
Label(s):
formbook
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Result
Malware family:
formbook
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Score:
  10/10
Tags:
family:formbook campaign:g8ni rat spyware stealer suricata trojan
Link:
https://tria.ge/reports/211019-hc1h9agcal/
Behaviour
Creates scheduled task(s)
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
Suspicious use of SetThreadContext
Deletes itself
Formbook Payload
Formbook
suricata: ET MALWARE FormBook CnC Checkin (GET)
Malware Config
C2 Extraction:
http://www.er5544.com/g8ni/
Unpacked files
SH256 hash:
7ff44ff4c1a0fde1e903a0fe2ea55beb4b012959d08ec95f6c86c3d670ebe3cd
MD5 hash:
3387deb1ce85866f4f8be177b36c32d6
SHA1 hash:
dc15d3f4968d212094d2e21db290fb6b6e5495e8
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/003fc935-8040-4f68-bd88-6a3617dbce86/
Parent samples :
c6b8a03b94f79fb661cb2bdd0e8a332103ab2974c288b6ab7740acf6aa45af5d
8d0f3056715cf96af14714339ef1bc6fef37da86983bd0ba175e098eb0c2be8b
2a2187ae775f286c2400957b71aac1c550779fc6652a710d126546d4d4879f0f
2ff41fc4d08d2049d6c7dcb47b28fcb1e73b896b3e33ee8b95da5a7a3b01a26c
fcaa502268e22400e98ae6f0842b7cf3598cf5a920c09a0d74996bdb64add249
3df54d0e5f1741308cfb7373e54e700b507d690142e085c8d3c9a56741ed1c04
SH256 hash:
6cff44d71276d826f22a7357e76f224093a3a26756dbefc51bc59b61cb40e1d7
MD5 hash:
341cfec2c2017217afaf14ff6bacd3cc
SHA1 hash:
a139165118c618000b48dfe217486a7eba7769b4
Link:
https://www.unpac.me/results/003fc935-8040-4f68-bd88-6a3617dbce86/
SH256 hash:
7b4ba24781e21b310e2749bc2f7a80b9670a4198a54d26e42079a6a1c1be6ae7
MD5 hash:
7b77d210bf6b00fd8ee8187198852052
SHA1 hash:
7f78d6294a269349fc9a49ad3c8ccb3c3d2665b4
Link:
https://www.unpac.me/results/003fc935-8040-4f68-bd88-6a3617dbce86/
SH256 hash:
2a2187ae775f286c2400957b71aac1c550779fc6652a710d126546d4d4879f0f
MD5 hash:
a445dd187c6dc7254da6d2f0d893f2fb
SHA1 hash:
c0548d4ed4a9c2b68fbcf592e9a892fa587d5b0e
Link:
https://www.unpac.me/results/003fc935-8040-4f68-bd88-6a3617dbce86/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/2a2187ae775f/report/overview.html
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/2a2187ae775f286c2400957b71aac1c550779fc6652a710d126546d4d4879f0f

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
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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 2a2187ae775f286c2400957b71aac1c550779fc6652a710d126546d4d4879f0f

(this sample)

  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/198395/

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