Analysis
-
max time kernel
57s -
max time network
120s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
24-05-2022 16:54
Static task
static1
Behavioral task
behavioral1
Sample
bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe
Resource
win10v2004-20220414-en
General
-
Target
bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe
-
Size
923KB
-
MD5
22a544c96d4373c1bb70ab10616d6dfc
-
SHA1
24d6958135e39dd8ac536ebc6385f200566cfa11
-
SHA256
bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be
-
SHA512
9530ec552ef5380087161157530f5d9b5c8640d656e962e733b7c94cfa646e1f861cccbcb6a4cd583801e5d4a6b258a2a931b28f07edeb353b6eb8ba223947f2
Malware Config
Extracted
C:\Users\Admin\AppData\Local\Temp\79FE0CC911\Log.txt
masslogger
Signatures
-
CoreEntity .NET Packer 1 IoCs
A .NET packer called CoreEntity where it has embedded the payload as a BitMap object which is later decrypted.
Processes:
resource yara_rule behavioral1/memory/1100-56-0x0000000000300000-0x0000000000308000-memory.dmp coreentity -
MassLogger
Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.
-
MassLogger log file 1 IoCs
Detects a log file produced by MassLogger.
Processes:
yara_rule masslogger_log_file -
ReZer0 packer 1 IoCs
Detects ReZer0, a packer with multiple versions used in various campaigns.
Processes:
resource yara_rule behavioral1/memory/1100-57-0x00000000074E0000-0x0000000007590000-memory.dmp rezer0 -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1819626980-2277161760-1023733287-1000\Control Panel\International\Geo\Nation bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exedescription pid process target process PID 1100 set thread context of 2044 1100 bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe -
Suspicious behavior: EnumeratesProcesses 1 IoCs
Processes:
bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exepid process 2044 bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exedescription pid process Token: SeDebugPrivilege 2044 bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe -
Suspicious use of WriteProcessMemory 9 IoCs
Processes:
bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exedescription pid process target process PID 1100 wrote to memory of 2044 1100 bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe PID 1100 wrote to memory of 2044 1100 bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe PID 1100 wrote to memory of 2044 1100 bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe PID 1100 wrote to memory of 2044 1100 bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe PID 1100 wrote to memory of 2044 1100 bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe PID 1100 wrote to memory of 2044 1100 bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe PID 1100 wrote to memory of 2044 1100 bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe PID 1100 wrote to memory of 2044 1100 bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe PID 1100 wrote to memory of 2044 1100 bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe"C:\Users\Admin\AppData\Local\Temp\bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\bb8d3a66ecd0ba5f13e77d65445f34b252dd1382b44b30f5447cd599655907be.exe"{path}"2⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
-
memory/1100-54-0x0000000001040000-0x000000000112C000-memory.dmpFilesize
944KB
-
memory/1100-55-0x00000000762C1000-0x00000000762C3000-memory.dmpFilesize
8KB
-
memory/1100-56-0x0000000000300000-0x0000000000308000-memory.dmpFilesize
32KB
-
memory/1100-57-0x00000000074E0000-0x0000000007590000-memory.dmpFilesize
704KB
-
memory/2044-58-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-59-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-61-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-62-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-63-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-64-0x00000000004A33CE-mapping.dmp
-
memory/2044-66-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-68-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-70-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-72-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-74-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-76-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-78-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-80-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-82-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-84-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-86-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-88-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-90-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-92-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-94-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-96-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-98-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-100-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-102-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-104-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-106-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-108-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-110-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-112-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-114-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-116-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-118-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-120-0x0000000000400000-0x00000000004A8000-memory.dmpFilesize
672KB
-
memory/2044-578-0x0000000004EF5000-0x0000000004F06000-memory.dmpFilesize
68KB