682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6

General

Target

682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe
Size

284KB
MD5

7529434768151e05538ccf2d097b0ecb
SHA1

243040045fe8c8a2cea6a119eb234b9b1216db48
SHA256

682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6
SHA512

d16101d50427a14bea24fed5647014e7e8ea1051a5a45106dc6e8c3962edba36ed8fb6f0cfd19f6188fe362330ea0d60cb2e4567613b9e7c276e23a858afce95
SSDEEP

6144:ztvBPnU1b7e9SQii1EkoNlhlrQ2ZrM2x//aC9KpytQEcCC1:Zv1nWdQP1EDhZPxaCIp2Ncb

Score

7^/10

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
2344	Isass.exe
3028	DW_682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe

Loads dropped DLL 4 IoCs

pid	Process
2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe
2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe
2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe
2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3691908287-3775019229-3534252667-1000\Software\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Program Files (x86)\\Microsoft Build\\Isass.exe"	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\Isass.exe = "C:\\Program Files (x86)\\Microsoft Build\\Isass.exe"	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe

Drops file in Program Files directory 1 IoCs

description	ioc	Process
File created	C:\Program Files (x86)\Microsoft Build\Isass.exe	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe
2344	Isass.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2348 wrote to memory of 2344	2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe	28
PID 2348 wrote to memory of 2344	2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe	28
PID 2348 wrote to memory of 2344	2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe	28
PID 2348 wrote to memory of 2344	2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe	28
PID 2348 wrote to memory of 3028	2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe	29
PID 2348 wrote to memory of 3028	2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe	29
PID 2348 wrote to memory of 3028	2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe	29
PID 2348 wrote to memory of 3028	2348	682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe	29

C:\Users\Admin\AppData\Local\Temp\682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe
"C:\Users\Admin\AppData\Local\Temp\682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Drops file in Program Files directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2348
- C:\Program Files (x86)\Microsoft Build\Isass.exe
  "C:\Program Files (x86)\Microsoft Build\Isass.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:2344
- C:\Users\Admin\AppData\Local\Temp\DW_682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe
  "C:\Users\Admin\AppData\Local\Temp\DW_682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe"
  2⤵
  - Executes dropped EXE
  PID:3028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\DW_682f25aeb2aa1a41707794d3ad77dee0ea2f31b3c53899914f26e6d4e45478c6.exe

Filesize
64KB

MD5
a32a382b8a5a906e03a83b4f3e5b7a9b

SHA1
11e2bdd0798761f93cce363329996af6c17ed796

SHA256
75f12ea2f30d9c0d872dade345f30f562e6d93847b6a509ba53beec6d0b2c346

SHA512
ec87dd957be21b135212454646dcabdd7ef9442cf714e2c1f6b42b81f0c3fa3b1875bde9a8b538e8a0aa2190225649c29e9ed0f25176e7659e55e422dd4efe4c

Download Submit
\Program Files (x86)\Microsoft Build\Isass.exe

Filesize
213KB

MD5
55d43211ba2fc070c2b14d6d87809b44

SHA1
5da380652eb9d3295a4e87c5864774a8d4bbccd7

SHA256
ae860675c711800b39052740d86af278a77bebb701ea64e48df795e492374710

SHA512
f59f1551173200049888dc24cea4c91a58c93e6cd17c01207005c7017db52af7db756e3ce71f4688ec051353d641c7107e76554e1fc6451a0193265f9578a243

Download Submit
memory/2344-44-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-34-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-60-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-50-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-23-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-24-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/2344-25-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-26-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-27-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-28-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-33-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-49-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-37-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-48-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-45-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-46-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2344-47-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2348-8-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2348-13-0x0000000004390000-0x0000000005637000-memory.dmp

Filesize
18.7MB

Download
memory/2348-22-0x0000000000400000-0x00000000016A7000-memory.dmp

Filesize
18.7MB

Download
memory/2348-11-0x0000000004390000-0x0000000005637000-memory.dmp

Filesize
18.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads