MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 ec81ecfe0f57e6ce43b9c5b605deead6f3d3c6f72a94e2d2bc14d6b0bda004c5. 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
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SHA256 hash: ec81ecfe0f57e6ce43b9c5b605deead6f3d3c6f72a94e2d2bc14d6b0bda004c5
SHA3-384 hash: b33a703d8b24e5e5cf3bfe73932023db58f0082046af953dfafaee6fd6ae479ff0d6e1bb159c26c141ce075a330ad563
SHA1 hash: 981e820185c3cba093509787fc42710a1ad18c83
MD5 hash: 35d274aaba7947d482b301187ea4272c
humanhash: avocado-jupiter-november-batman
File name:Purchase Order 006672983.exe
Download: download sample
Signature Formbook
Create hunting rule
File size:1'085'440 bytes
First seen:2022-11-08 12:22:18 UTC
Last seen:2022-11-08 13:43:35 UTC
File type:Executable exe
MIME type:application/x-dosexec
imphash f34d5f2d4577ed6d9ceec516c1f5a744 (48'742 x AgentTesla, 19'606 x Formbook, 12'242 x SnakeKeylogger)
ssdeep 12288:ZUEkud/+hz7mle2mT1c6O9gI1Ej/FPSB54tmtaNiiYOvzKiJWuj2lJgyjcAvOO9k:ZUyicBhE7FlYtawixixlOyjcMOvqHpi
Threatray 16'276 similar samples on MalwareBazaar
TLSH T18C35C0A034702FB5D67EDFF686692A2483F33D69224AF64E4CE070EA1573F924560E17
TrID 64.2% (.EXE) Generic CIL Executable (.NET, Mono, etc.) (73123/4/13)
11.5% (.SCR) Windows screen saver (13097/50/3)
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 :
198
Origin country :
n/a
Vendor Threat Intelligence
Malware family:
formbook
Create hunting rule
ID:
1
File name:
Purchase Order 006672983.exe
Verdict:
Malicious activity
Analysis date:
2022-11-08 12:24:58 UTC
Tags:
formbook trojan stealer
Link:
https://app.any.run/tasks/cc824406-905f-474c-b021-ae6bc4267c10

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/330502/
Detection(s):
SecuriteInfo.com.Trojan.MSIL.AgentTesla.NWJ.MTB.12721.22782.UNOFFICIAL
Create hunting rule

Result
Verdict:
Malware
Maliciousness:

Behaviour
Creating a window
DNS request
Sending a custom TCP request
Launching a process
Unauthorized injection to a system process
Verdict:
Malicious
Threat level:
  10/10
Confidence:
100%
Tags:
packed
Link:
https://www.filescan.io/uploads/636a4a28c0dbe6b5f9a4b209/reports/97c7c0f5-53bb-40a4-9198-ed4b03b89806/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.
Verdict:
Unknown
Link:
https://analyze.intezer.com/analyses/a390ec17-cc82-4b20-82a8-e6ebac38277c
Result
Threat name:
FormBook
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1108784
Signature
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Deletes itself after installation
Initial sample is a PE file and has a suspicious name
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
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: 741447 Sample: Purchase Order 006672983.exe Startdate: 09/11/2022 Architecture: WINDOWS Score: 100 27 www.supremeorient.org 2->27 29 supremeorient.org 2->29 35 Snort IDS alert for network traffic 2->35 37 Multi AV Scanner detection for domain / URL 2->37 39 Malicious sample detected (through community Yara rule) 2->39 41 9 other signatures 2->41 9 Purchase Order 006672983.exe 3 2->9         started        signatures3 process4 file5 25 C:\Users\...\Purchase Order 006672983.exe.log, ASCII 9->25 dropped 53 Injects a PE file into a foreign processes 9->53 13 Purchase Order 006672983.exe 9->13         started        16 Purchase Order 006672983.exe 9->16         started        signatures6 process7 signatures8 55 Modifies the context of a thread in another process (thread injection) 13->55 57 Maps a DLL or memory area into another process 13->57 59 Sample uses process hollowing technique 13->59 61 Queues an APC in another process (thread injection) 13->61 18 explorer.exe 13->18 injected process9 dnsIp10 31 hongzeloan.com 50.87.249.35, 49719, 80 UNIFIEDLAYER-AS-1US United States 18->31 33 www.hongzeloan.com 18->33 43 System process connects to network (likely due to code injection or exploit) 18->43 22 explorer.exe 13 18->22         started        signatures11 process12 signatures13 45 Tries to steal Mail credentials (via file / registry access) 22->45 47 Tries to harvest and steal browser information (history, passwords, etc) 22->47 49 Deletes itself after installation 22->49 51 2 other signatures 22->51
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/ec81ecfe0f57e6ce43b9c5b605deead6f3d3c6f72a94e2d2bc14d6b0bda004c5/
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Create hunting rule
Status:
Malicious
First seen:
2022-11-08 09:16:54 UTC
File Type:
PE (.Net Exe)
Extracted files:
31
AV detection:
20 of 26 (76.92%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=5sa6z7qpk7tm4q5zyw3alxxk23z5hrxxfkkofuv4ctllbpnaatcq._file
Verdict:
malicious
Label(s):
formbook
Create hunting rule
Similar samples:
1a269ea6349fc76e0d8a35b318eef5a3eca9498a419cf405d4cbf8dbd6c49ed7
Formbook
406d598252fddcb959a27c828c8d258ae662e2a07cfcae1a107608e65c680c6b
Formbook
4514fc2a757de12c765ce8886024f9e88a24e8c716001b911fab3fa693fcbdb1
Formbook
9de05e3460e7b565c614eddca75b9b08b697f9b21c3b4da6fd88e8d7b2d11a90
Formbook
c57a9475d4b8d7811ab189f35fed2acf525f175a77d59a791157d9d52c47b4aa
Formbook
cc268916fb77287ae7258a4301c427751c9a0277786d101aa74a761419564f28
Formbook
ed575e87b8ddb54cdd3f247dc89ac394081bbd503cbd6b29d1a4592d60aa07a6
Formbook
f72205e001670625bf222e1023da747d37df422e831601d16cf614a69f180d8e
Formbook
+ 16'266 additional samples on MalwareBazaar
Result
Malware family:
formbook
Create hunting rule
Score:
  10/10
Tags:
family:formbook campaign:sq02 rat spyware stealer trojan
Link:
https://tria.ge/reports/221108-pkf8xafgd7/
Behaviour
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
Enumerates physical storage devices
Suspicious use of SetThreadContext
Checks computer location settings
Loads dropped DLL
Reads user/profile data of web browsers
Blocklisted process makes network request
Formbook
Verdict:
Suspicious
Tags:
n/a
YARA:
n/a
Link:
https://app.threat.zone/submission/4aa3d2ec-9e98-429d-aefe-a13a5064c80e
Unpacked files
SH256 hash:
51f1a6d241c7dfe6c507282b63556c2e32a225449b8eaf215d09b632f6b35a7b
MD5 hash:
43bb94dd88fb2cec55f630046c0e2636
SHA1 hash:
6e220568de4e41eae908abd03f6eaaba1cbfe0a7
Detections:
XLoader
Create hunting rule
win_formbook_auto
Create hunting rule
win_formbook_g0
Create hunting rule
Link:
https://www.unpac.me/results/2cf901ca-5311-4a78-9690-814ff7400ad7/
Parent samples :
803e9ac4f84a0c64b7f2e62f7d8d1852d0e4d9e9d7f956a5cc3f1898e31c1609
48b079858bbf0e7021080323a7c09bfeced7cb0d6b08d1ffb3223ebc2407df12
afabedda8c30dd6ec7a838619aeec597737e3d33fcf1c4f43a68240774607960
ec81ecfe0f57e6ce43b9c5b605deead6f3d3c6f72a94e2d2bc14d6b0bda004c5
d08bd114dd8a6575cd15bfad46b2216cc25c8fa8f6e46c7d0b4c4cb2fa27b47b
cd9a410deecd737a9a8185306db4b6fe30b814d1889f98abb43cd1d835068b89
718a4a857daa174f252381d376a10addf1dc549802443df0c55236db07745180
e69029315442a5ee81db93bf71e4e536cd0b2ca3124ea149d9ce2699fa6a0da1
SH256 hash:
ebd82e49899884d177d9faf9cf55840445f4c1c4e1fe07c099ce0bfb182de9c9
MD5 hash:
f148895e3d55c5a75ef2223a472a0293
SHA1 hash:
281c094b00f7f384211e7d77760dee071ad60584
Link:
https://www.unpac.me/results/2cf901ca-5311-4a78-9690-814ff7400ad7/
SH256 hash:
522288ed332bead4248e924c4773a4cdbc8e313e7f1c082175ddadf3cbb4bd74
MD5 hash:
6a403f299148f657b9164f35ee88be40
SHA1 hash:
d0e8320219ee85148a72a79b80c3b2d5745ff3fc
Link:
https://www.unpac.me/results/2cf901ca-5311-4a78-9690-814ff7400ad7/
SH256 hash:
92bd802a0f7eb1213758a6c1a4c07302e0320c3a2aeb6273b0303dd3bbdefe90
MD5 hash:
046e97119545e5abde2f40b5dc3a0344
SHA1 hash:
3e69b67ddff2554c8cd72e129d4da9c8acd9d331
Link:
https://www.unpac.me/results/2cf901ca-5311-4a78-9690-814ff7400ad7/
SH256 hash:
37a5bf4fd56ca2c571e66247922c00f2019177fad6faed5963de7e4627f58846
MD5 hash:
2f80ae26af96656c78db6ad7dd50f47f
SHA1 hash:
3af07562b450515f3f029678f363a8d3c0215337
Link:
https://www.unpac.me/results/2cf901ca-5311-4a78-9690-814ff7400ad7/
SH256 hash:
744928a56b4d36f17e73eea0534c5e99103d1553d5b0a864a6fd9d4f9899b47f
MD5 hash:
91fed5db1afcdf48e0cd6d4058a013ba
SHA1 hash:
3717b3346e25d3f66f00626ad1a771d8655f485f
Link:
https://www.unpac.me/results/2cf901ca-5311-4a78-9690-814ff7400ad7/
SH256 hash:
ec81ecfe0f57e6ce43b9c5b605deead6f3d3c6f72a94e2d2bc14d6b0bda004c5
MD5 hash:
35d274aaba7947d482b301187ea4272c
SHA1 hash:
981e820185c3cba093509787fc42710a1ad18c83
Link:
https://www.unpac.me/results/2cf901ca-5311-4a78-9690-814ff7400ad7/
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 ec81ecfe0f57e6ce43b9c5b605deead6f3d3c6f72a94e2d2bc14d6b0bda004c5

(this sample)

  
Dropped by
formbook
  
Delivery method
Distributed via e-mail attachment
Cape
Cape
https://www.capesandbox.com/analysis/330502/

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