MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 a1c94b041635b2153e990827648e415b94da3b8f473e98798e5deaa599f2eb62. 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 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: a1c94b041635b2153e990827648e415b94da3b8f473e98798e5deaa599f2eb62
SHA3-384 hash: 641190a224302caa2566821d744c2bb1376a887cba976f485a30afad551f8bfffc5300884af1bd0f75c8977435375b1d
SHA1 hash: ab9fcb9e062aee56daa16e2aa455ea97716cb6d0
MD5 hash: ae2080b2f5912ee4a2e2a4a03e9831f4
humanhash: oklahoma-leopard-illinois-low
File name:ae2080b2f5912ee4a2e2a4a03e9831f4.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:419'840 bytes
First seen:2022-01-12 10:50:16 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'740 x AgentTesla, 19'600 x Formbook, 12'241 x SnakeKeylogger)
ssdeep 12288:a07xeVIjJtjnZdJs5snaOmtYJ/3eT+BKvo0eYIPDtGG:pEVIj/jnfJnaOB2KBKvneYI5GG
TLSH T1A294124962FC8327D6390BBE7461A1300BF1F3463562F6E69E8572EA2D937801643E77
File icon (PE):PE icon
dhash icon b3b3333969693b3b (69 x Formbook, 63 x AgentTesla, 26 x Loki)
Reporter abuse_ch
Tags:exe FormBook

Intelligence

File Origin
# of uploads :
1
# of downloads :
240
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
ae2080b2f5912ee4a2e2a4a03e9831f4.exe
Verdict:
Suspicious activity
Analysis date:
2022-01-12 10:58:11 UTC
Tags:
n/a
Link:
https://app.any.run/tasks/ea20b722-f258-457c-856b-82692614cc81

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/218691/
Detection(s):
SecuriteInfo.com.Trojan.PackedNET.1156.1453.11751.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Unauthorized injection to a recently created process
Creating a file
Gathering data
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/67fd0667-c502-45e9-94bb-389bfae7478e
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/919167
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Allocates memory in foreign processes
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Found 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 submitted file
Queues an APC in another process (thread injection)
Sample uses process hollowing technique
Self deletion via cmd delete
Sigma detected: CMSTP Execution Process Creation
Snort IDS alert for network traffic (e.g. based on Emerging Threat rules)
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Tries to detect virtualization through RDTSC time measurements
Writes to foreign memory regions
Yara detected AntiVM3
Yara detected FormBook
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 551641 Sample: F2pqHN5chr.exe Startdate: 12/01/2022 Architecture: WINDOWS Score: 100 36 www.realvrz.com 2->36 38 parkingpage.namecheap.com 2->38 50 Snort IDS alert for network traffic (e.g. based on Emerging Threat rules) 2->50 52 Found malware configuration 2->52 54 Malicious sample detected (through community Yara rule) 2->54 56 10 other signatures 2->56 11 F2pqHN5chr.exe 3 2->11         started        signatures3 process4 file5 34 C:\Users\user\AppData\...\F2pqHN5chr.exe.log, ASCII 11->34 dropped 66 Writes to foreign memory regions 11->66 68 Allocates memory in foreign processes 11->68 70 Tries to detect virtualization through RDTSC time measurements 11->70 72 Injects a PE file into a foreign processes 11->72 15 BackgroundTransferHost.exe 13 11->15         started        17 F2pqHN5chr.exe 11->17         started        signatures6 process7 signatures8 20 explorer.exe 15->20 injected 42 Modifies the context of a thread in another process (thread injection) 17->42 44 Maps a DLL or memory area into another process 17->44 46 Sample uses process hollowing technique 17->46 48 Queues an APC in another process (thread injection) 17->48 process9 process10 22 cmstp.exe 20->22         started        signatures11 58 Self deletion via cmd delete 22->58 60 Modifies the context of a thread in another process (thread injection) 22->60 62 Maps a DLL or memory area into another process 22->62 64 Tries to detect virtualization through RDTSC time measurements 22->64 25 explorer.exe 2 149 22->25         started        28 cmd.exe 1 22->28         started        30 mobsync.exe 22->30         started        process12 dnsIp13 40 192.168.2.1 unknown unknown 25->40 32 conhost.exe 28->32         started        process14
Detection:
formbook
Create hunting rule
Link:
https://mwdb.cert.pl/sample/a1c94b041635b2153e990827648e415b94da3b8f473e98798e5deaa599f2eb62/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-01-12 10:31:29 UTC
File Type:
PE (.Net Exe)
Extracted files:
8
AV detection:
22 of 27 (81.48%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=uheuwbawgwzbkpuzbatwjdsbloknuo4pi47jq6molxvklgps5nra._file
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:d2z8 rat spyware stealer trojan
Link:
https://tria.ge/reports/220112-mxtnnacce9/
Behaviour
Suspicious behavior: EnumeratesProcesses
Suspicious use of WriteProcessMemory
Suspicious use of SetThreadContext
Formbook Payload
Formbook
Unpacked files
SH256 hash:
c1865ecddf7fe972c2014bfbb78060bc87b2dda46cce30ab69b3c2ec545877b7
MD5 hash:
071f229aea8c73c95a94e5be0931d583
SHA1 hash:
105653afad37f4b6f17461e633dc00108a3cf140
Detections:
win_formbook_g0
Create hunting rule
win_formbook_auto
Create hunting rule
Link:
https://www.unpac.me/results/a717116b-fa7e-4e8c-a503-fa5b67630d96/
Parent samples :
9029cb23c3237afc1e63076ffba6a89ed9d4fec8df9606feebe68b2de092fa36
a1c94b041635b2153e990827648e415b94da3b8f473e98798e5deaa599f2eb62
dfa0138818e4f998337af94d5fea30fc920237ffba320fe5acd7af469db0c4a8
c4e0e2fd9fc5399619706e67a776832eeb09461874f035a75a7b8e047fb964a0
e9eaf870b7dc67f068a0e00b8bf7cc5b95bb6f071bbd7d95034268b40ec61649
SH256 hash:
64f44e4f1d43c2f81fa0949ed4a1140cde1380a743cc7607070de3698dcdb118
MD5 hash:
1bfd5bdad40f04ec647fe69d055bd7fd
SHA1 hash:
cf35cb0c417fe012114ba2a53105764c4ee7f090
Link:
https://www.unpac.me/results/a717116b-fa7e-4e8c-a503-fa5b67630d96/
SH256 hash:
7fbcb7a78cdc60dc0cd873e5698dfca20c23afbd8b5bc7f824096f4e16491664
MD5 hash:
e0132d65b0b97654dbd2b410c491acc4
SHA1 hash:
80a6e39b9573a709188e2460a869a141bc36c489
Link:
https://www.unpac.me/results/a717116b-fa7e-4e8c-a503-fa5b67630d96/
SH256 hash:
a1c94b041635b2153e990827648e415b94da3b8f473e98798e5deaa599f2eb62
MD5 hash:
ae2080b2f5912ee4a2e2a4a03e9831f4
SHA1 hash:
ab9fcb9e062aee56daa16e2aa455ea97716cb6d0
Link:
https://www.unpac.me/results/a717116b-fa7e-4e8c-a503-fa5b67630d96/
Malware family:
FormBook
Create hunting rule
Verdict:
Malicious
Link:
https://www.vmray.com/analyses/a1c94b041635/report/overview.html
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Suspicious File
Score:
0.65
Link:
https://yomi.yoroi.company/submissions/a1c94b041635b2153e990827648e415b94da3b8f473e98798e5deaa599f2eb62

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.

Web download

Formbook

Executable exe a1c94b041635b2153e990827648e415b94da3b8f473e98798e5deaa599f2eb62

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/1863440/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/218691/

Comments