e1ed702f5eeae3c7808e0d617f9c03d108c6d4fe95f737331cb3e27a33697b3d

Analysis

max time kernel
46s
max time network
49s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
17/12/2022, 06:57

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General

Target

tmp.exe
Size

1.5MB
MD5

07fd348ebdbd39eb60eea9cea78bbc3d
SHA1

03710363ec81ea9a2acff167ce0e2bb6287c82b8
SHA256

e1ed702f5eeae3c7808e0d617f9c03d108c6d4fe95f737331cb3e27a33697b3d
SHA512

95363afc4a659ac5a118ef6b6ebecab93f771156f735fb87f8c1d2546720e7074837eda61b3bb854145915ea778689f0631d0d00c25067733ad22936400bfc3e
SSDEEP

24576:v2ectSRRfRnp/FZqRT0aCCwkJshwiVz+SscejPNxSc9LgoKvsdMEUaE2pxk9bZH2:v2XW7p9wCCw1SyFsV585vcMq9pxk9dH2

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
832	is-UTT8N.tmp

Loads dropped DLL 3 IoCs

pid	Process
1816	tmp.exe
832	is-UTT8N.tmp
832	is-UTT8N.tmp

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

System Information Discovery
T1082

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1816 wrote to memory of 832	1816	tmp.exe	27
PID 1816 wrote to memory of 832	1816	tmp.exe	27
PID 1816 wrote to memory of 832	1816	tmp.exe	27
PID 1816 wrote to memory of 832	1816	tmp.exe	27
PID 1816 wrote to memory of 832	1816	tmp.exe	27
PID 1816 wrote to memory of 832	1816	tmp.exe	27
PID 1816 wrote to memory of 832	1816	tmp.exe	27

C:\Users\Admin\AppData\Local\Temp\tmp.exe
"C:\Users\Admin\AppData\Local\Temp\tmp.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1816
- C:\Users\Admin\AppData\Local\Temp\is-8LA8G.tmp\is-UTT8N.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-8LA8G.tmp\is-UTT8N.tmp" /SL4 $80124 "C:\Users\Admin\AppData\Local\Temp\tmp.exe" 1307495 51712
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  PID:832

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\is-8LA8G.tmp\is-UTT8N.tmp

Filesize
651KB

MD5
d2cb3558dffecad8c2cec1e4eef9e581

SHA1
a83eb9617dc62612e38dff1ac0d13e6c485f03c2

SHA256
206e3c68af6a2bb488fd9f8141a81c0f817f1cd3704cf8a4d4de2b0e2dba8605

SHA512
64af57b903812b2ddc5a6dd3cc8f81c0f37dc9e45776a33af4ac1bedf66d22271b83cd3e11cb3c1024e26a305ff676e27f4d09120a580a3f95b21dc7e46fb502

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8LA8G.tmp\is-UTT8N.tmp

Filesize
651KB

MD5
d2cb3558dffecad8c2cec1e4eef9e581

SHA1
a83eb9617dc62612e38dff1ac0d13e6c485f03c2

SHA256
206e3c68af6a2bb488fd9f8141a81c0f817f1cd3704cf8a4d4de2b0e2dba8605

SHA512
64af57b903812b2ddc5a6dd3cc8f81c0f37dc9e45776a33af4ac1bedf66d22271b83cd3e11cb3c1024e26a305ff676e27f4d09120a580a3f95b21dc7e46fb502

Download Submit
\Users\Admin\AppData\Local\Temp\is-8LA8G.tmp\is-UTT8N.tmp

Filesize
651KB

MD5
d2cb3558dffecad8c2cec1e4eef9e581

SHA1
a83eb9617dc62612e38dff1ac0d13e6c485f03c2

SHA256
206e3c68af6a2bb488fd9f8141a81c0f817f1cd3704cf8a4d4de2b0e2dba8605

SHA512
64af57b903812b2ddc5a6dd3cc8f81c0f37dc9e45776a33af4ac1bedf66d22271b83cd3e11cb3c1024e26a305ff676e27f4d09120a580a3f95b21dc7e46fb502

Download Submit
\Users\Admin\AppData\Local\Temp\is-ISQR4.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-ISQR4.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1816-54-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

Filesize
8KB

Download
memory/1816-55-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1816-64-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download