b3f1c5f4d840ba14b6ebca34b232643487b7f5922e50a36518b5d61f745a7e2e

Analysis

max time kernel
149s
max time network
152s
platform
windows7_x64
resource
win7-20230703-en
resource tags

arch:x64arch:x86image:win7-20230703-enlocale:en-usos:windows7-x64system
submitted
09/07/2023, 19:45

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General

Target

bf420fa90658beexeexeexeex.exe
Size

43KB
MD5

bf420fa90658bed18451c79f5a6189b3
SHA1

4f37928114e133d69a3dab9379eb1b60aa55b0cf
SHA256

b3f1c5f4d840ba14b6ebca34b232643487b7f5922e50a36518b5d61f745a7e2e
SHA512

660b539728ce265aaf25e75d4c2f99962fc43f67036c058719bb57474b67ffb1915370dcf0f71290a029ce2093817f6613a33b4ac6a112021534bccef2582716
SSDEEP

768:qUmnjFom/kLyMro2GtOOtEvwDpjeMLam5aFr7YOzzfm5oU3tu8/Y:qUmnpomddpMOtEvwDpjjaYaFAh5Nw

Score

7^/10

upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2288	asih.exe

Loads dropped DLL 1 IoCs

pid	Process
1352	bf420fa90658beexeexeexeex.exe

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000d0000000133da-63.dat	upx
behavioral1/memory/1352-66-0x0000000000500000-0x000000000050F000-memory.dmp	upx
behavioral1/files/0x000d0000000133da-67.dat	upx
behavioral1/files/0x000d0000000133da-75.dat	upx
behavioral1/memory/2288-76-0x0000000000500000-0x000000000050F000-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 1352 wrote to memory of 2288	1352	bf420fa90658beexeexeexeex.exe	29
PID 1352 wrote to memory of 2288	1352	bf420fa90658beexeexeexeex.exe	29
PID 1352 wrote to memory of 2288	1352	bf420fa90658beexeexeexeex.exe	29
PID 1352 wrote to memory of 2288	1352	bf420fa90658beexeexeexeex.exe	29

C:\Users\Admin\AppData\Local\Temp\bf420fa90658beexeexeexeex.exe
"C:\Users\Admin\AppData\Local\Temp\bf420fa90658beexeexeexeex.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1352
- C:\Users\Admin\AppData\Local\Temp\asih.exe
  "C:\Users\Admin\AppData\Local\Temp\asih.exe"
  2⤵
  - Executes dropped EXE
  PID:2288

Network

MITRE ATT&CK Enterprise v6

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

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

Filesize
43KB

MD5
f21834b713a7e2b5debc20f6f6233346

SHA1
4277e11c1c7b947a10e12a616d3e0e6d402bc60d

SHA256
c2c102513497aa9913be97c616f958d905a5e227d0ed4cd8780c80ea129a1f99

SHA512
a895e52b69c824fa3b3b2575bb5c30407aef92dfc4374df612f55a891a0c0084db247427b867d27c6677ecdf2f5ef5bf93af6a114f0c2a91e1d1b734d8e27fc4

Download Submit
C:\Users\Admin\AppData\Local\Temp\asih.exe

Filesize
43KB

MD5
f21834b713a7e2b5debc20f6f6233346

SHA1
4277e11c1c7b947a10e12a616d3e0e6d402bc60d

SHA256
c2c102513497aa9913be97c616f958d905a5e227d0ed4cd8780c80ea129a1f99

SHA512
a895e52b69c824fa3b3b2575bb5c30407aef92dfc4374df612f55a891a0c0084db247427b867d27c6677ecdf2f5ef5bf93af6a114f0c2a91e1d1b734d8e27fc4

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

Filesize
43KB

MD5
f21834b713a7e2b5debc20f6f6233346

SHA1
4277e11c1c7b947a10e12a616d3e0e6d402bc60d

SHA256
c2c102513497aa9913be97c616f958d905a5e227d0ed4cd8780c80ea129a1f99

SHA512
a895e52b69c824fa3b3b2575bb5c30407aef92dfc4374df612f55a891a0c0084db247427b867d27c6677ecdf2f5ef5bf93af6a114f0c2a91e1d1b734d8e27fc4

Download Submit
memory/1352-54-0x0000000000240000-0x0000000000246000-memory.dmp

Filesize
24KB

Download
memory/1352-55-0x0000000000370000-0x0000000000376000-memory.dmp

Filesize
24KB

Download
memory/1352-66-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download
memory/2288-69-0x0000000000300000-0x0000000000306000-memory.dmp

Filesize
24KB

Download
memory/2288-76-0x0000000000500000-0x000000000050F000-memory.dmp

Filesize
60KB

Download