1b3d7eaf3e15730c867b11c42b34491bde54610171ec48baad501cf24a5dbc9d

Analysis

max time kernel
149s
max time network
155s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
10/01/2024, 05:59

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General

Target

2024-01-09_ab692ae144bdeb32df998bf0f893b0d2_cryptolocker.exe
Size

92KB
MD5

ab692ae144bdeb32df998bf0f893b0d2
SHA1

7016ba0432f03dd81263e8e09980737af34977e5
SHA256

1b3d7eaf3e15730c867b11c42b34491bde54610171ec48baad501cf24a5dbc9d
SHA512

45251f43b6e907f4de0520753f37f228df270684a2be36a8f5f6c514a5baed9faef4f29d5fcc2f89e7c91085d32350670ef802da0427a1926a85679de056c1fb
SSDEEP

1536:qkmnpomddpMOtEvwDpjJGYQbN/PKwNgp01R:AnBdOOtEvwDpj6zj

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2688	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
2084	2024-01-09_ab692ae144bdeb32df998bf0f893b0d2_cryptolocker.exe

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral1/memory/2084-0-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x0009000000012246-11.dat	upx
behavioral1/memory/2084-15-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2688-16-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/memory/2688-25-0x0000000000500000-0x000000000050F000-memory.dmp	upx

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2084 wrote to memory of 2688	2084	2024-01-09_ab692ae144bdeb32df998bf0f893b0d2_cryptolocker.exe	28
PID 2084 wrote to memory of 2688	2084	2024-01-09_ab692ae144bdeb32df998bf0f893b0d2_cryptolocker.exe	28
PID 2084 wrote to memory of 2688	2084	2024-01-09_ab692ae144bdeb32df998bf0f893b0d2_cryptolocker.exe	28
PID 2084 wrote to memory of 2688	2084	2024-01-09_ab692ae144bdeb32df998bf0f893b0d2_cryptolocker.exe	28

C:\Users\Admin\AppData\Local\Temp\2024-01-09_ab692ae144bdeb32df998bf0f893b0d2_cryptolocker.exe
"C:\Users\Admin\AppData\Local\Temp\2024-01-09_ab692ae144bdeb32df998bf0f893b0d2_cryptolocker.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2084
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2688

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
92KB

MD5
47c1aa061172bed1ba9f58fb7fe35c6e

SHA1
655a51446a6b6a78f02b7fa064f3c0cae98250d1

SHA256
0c08633db1b8a092e552bb316d6abe84794c8f95001842ce6dff400a810dc213

SHA512
e8862cc654f26573d4062c6859f23c8600d5b975a4cc5d2f30d4566942d1cd886101f5b8cc7b4e75676108725db9077601ae5912ebc3e2eb09c6d1c9ea0599ad

Download Submit
memory/2084-0-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2084-1-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2084-3-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2084-2-0x00000000002C0000-0x00000000002C6000-memory.dmp

Filesize
24KB

Download
memory/2084-15-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2688-16-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2688-18-0x00000000002F0000-0x00000000002F6000-memory.dmp

Filesize
24KB

Download
memory/2688-25-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download