df3d7a225419e84026a827e861da17490a332566401232978f6e932907550dbf

General

Target

df3d7a225419e84026a827e861da17490a332566401232978f6e932907550dbf.exe
Size

3.0MB
MD5

30c4a5f0581d4da2a188a54fdd8a95b3
SHA1

53309d1da0900705ddf57d5f8ad998ce90dbc3ed
SHA256

df3d7a225419e84026a827e861da17490a332566401232978f6e932907550dbf
SHA512

32b26065db863d508e74442da8620e30935feb2802713b7608a9bb81fda63c6d7b8d196cb28b4489398dd290c67a2b5325648abb59caf52c3a8701caf29fb8bc
SSDEEP

49152:pGHGtZXb7GGabIazRYc7pORI5B1Cr35YUJgzmSMoqp9MgnY9tqpRU+8tsUM05:sG3GGafd1pOGgrtJgzmzMGqtqpRU+ysw

Score

7^/10

discovery

Malware Config

Signatures

Executes dropped EXE 3 IoCs

pid	Process
2208	is-VF773.tmp
4076	OSJMount.exe
392	OSJMount.exe

Loads dropped DLL 1 IoCs

pid	Process
2208	is-VF773.tmp

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 9 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\OSJMount\OSJMount.exe	is-VF773.tmp
File created	C:\Program Files (x86)\OSJMount\is-CKT2M.tmp	is-VF773.tmp
File created	C:\Program Files (x86)\OSJMount\is-0NGJ4.tmp	is-VF773.tmp
File created	C:\Program Files (x86)\OSJMount\is-CUB4G.tmp	is-VF773.tmp
File created	C:\Program Files (x86)\OSJMount\is-T8KNN.tmp	is-VF773.tmp
File created	C:\Program Files (x86)\OSJMount\is-K9553.tmp	is-VF773.tmp
File opened for modification	C:\Program Files (x86)\OSJMount\unins000.dat	is-VF773.tmp
File created	C:\Program Files (x86)\OSJMount\unins000.dat	is-VF773.tmp
File created	C:\Program Files (x86)\OSJMount\is-LV2Q8.tmp	is-VF773.tmp

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

System Information Discovery
T1082
Runs net.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3856 wrote to memory of 2208	3856	df3d7a225419e84026a827e861da17490a332566401232978f6e932907550dbf.exe	88
PID 3856 wrote to memory of 2208	3856	df3d7a225419e84026a827e861da17490a332566401232978f6e932907550dbf.exe	88
PID 3856 wrote to memory of 2208	3856	df3d7a225419e84026a827e861da17490a332566401232978f6e932907550dbf.exe	88
PID 2208 wrote to memory of 2316	2208	is-VF773.tmp	91
PID 2208 wrote to memory of 2316	2208	is-VF773.tmp	91
PID 2208 wrote to memory of 2316	2208	is-VF773.tmp	91
PID 2208 wrote to memory of 4076	2208	is-VF773.tmp	93
PID 2208 wrote to memory of 4076	2208	is-VF773.tmp	93
PID 2208 wrote to memory of 4076	2208	is-VF773.tmp	93
PID 2316 wrote to memory of 1180	2316	net.exe	94
PID 2316 wrote to memory of 1180	2316	net.exe	94
PID 2316 wrote to memory of 1180	2316	net.exe	94
PID 2208 wrote to memory of 392	2208	is-VF773.tmp	95
PID 2208 wrote to memory of 392	2208	is-VF773.tmp	95
PID 2208 wrote to memory of 392	2208	is-VF773.tmp	95

C:\Users\Admin\AppData\Local\Temp\df3d7a225419e84026a827e861da17490a332566401232978f6e932907550dbf.exe
"C:\Users\Admin\AppData\Local\Temp\df3d7a225419e84026a827e861da17490a332566401232978f6e932907550dbf.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3856
- C:\Users\Admin\AppData\Local\Temp\is-5NRHN.tmp\is-VF773.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-5NRHN.tmp\is-VF773.tmp" /SL4 $6015E "C:\Users\Admin\AppData\Local\Temp\df3d7a225419e84026a827e861da17490a332566401232978f6e932907550dbf.exe" 2871934 52224
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Suspicious use of WriteProcessMemory
  PID:2208
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" helpmsg 27
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2316
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 helpmsg 27
      4⤵
      PID:1180
- - C:\Program Files (x86)\OSJMount\OSJMount.exe
    "C:\Program Files (x86)\OSJMount\OSJMount.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4076
- - C:\Program Files (x86)\OSJMount\OSJMount.exe
    "C:\Program Files (x86)\OSJMount\OSJMount.exe" -s
    3⤵
    - Executes dropped EXE
    PID:392

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\OSJMount\OSJMount.exe

Filesize
2.2MB

MD5
59992b06de2453482e24ada618ae4fd4

SHA1
0731be98320612510a4b07b1ac76c64e84d29c73

SHA256
50d197d71bd03281c20cc13b11ad0bfb83c7bfa94244d8d52e2c46abbb4cf9eb

SHA512
8c7b51b764b168021dbf9b1f9a6e00c375649e5f602c64228812f8adbcbadd80ca4e81cab5ad709e54aa2e4a49227362436399ff9ad37bcfcd3fc8b0c9f90b75

Download Submit
C:\Program Files (x86)\OSJMount\OSJMount.exe

Filesize
2.2MB

MD5
59992b06de2453482e24ada618ae4fd4

SHA1
0731be98320612510a4b07b1ac76c64e84d29c73

SHA256
50d197d71bd03281c20cc13b11ad0bfb83c7bfa94244d8d52e2c46abbb4cf9eb

SHA512
8c7b51b764b168021dbf9b1f9a6e00c375649e5f602c64228812f8adbcbadd80ca4e81cab5ad709e54aa2e4a49227362436399ff9ad37bcfcd3fc8b0c9f90b75

Download Submit
C:\Program Files (x86)\OSJMount\OSJMount.exe

Filesize
2.2MB

MD5
59992b06de2453482e24ada618ae4fd4

SHA1
0731be98320612510a4b07b1ac76c64e84d29c73

SHA256
50d197d71bd03281c20cc13b11ad0bfb83c7bfa94244d8d52e2c46abbb4cf9eb

SHA512
8c7b51b764b168021dbf9b1f9a6e00c375649e5f602c64228812f8adbcbadd80ca4e81cab5ad709e54aa2e4a49227362436399ff9ad37bcfcd3fc8b0c9f90b75

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5NRHN.tmp\is-VF773.tmp

Filesize
652KB

MD5
f1b5055e1e80bf52a48683f85f9298ef

SHA1
26976cc0c690693084466d185c5e84da9870a778

SHA256
0b6381a1fc1ebc6594804042c8bf1ccfac7a9328bba3d3a487e571cbee298e50

SHA512
01290db6ac4dedb15d20fdc80a112b34cbce5c381c8fd262633c662e7927b314bca8063ad6109331d57feb50ed4045c05a7235347bb29edf401f9f867e9237ef

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5NRHN.tmp\is-VF773.tmp

Filesize
652KB

MD5
f1b5055e1e80bf52a48683f85f9298ef

SHA1
26976cc0c690693084466d185c5e84da9870a778

SHA256
0b6381a1fc1ebc6594804042c8bf1ccfac7a9328bba3d3a487e571cbee298e50

SHA512
01290db6ac4dedb15d20fdc80a112b34cbce5c381c8fd262633c662e7927b314bca8063ad6109331d57feb50ed4045c05a7235347bb29edf401f9f867e9237ef

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-645ID.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/392-72-0x00000000007E0000-0x0000000000829000-memory.dmp

Filesize
292KB

Download
memory/392-77-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/392-58-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/392-80-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/392-73-0x00000000007E0000-0x0000000000829000-memory.dmp

Filesize
292KB

Download
memory/392-82-0x00000000007E0000-0x0000000000829000-memory.dmp

Filesize
292KB

Download
memory/392-70-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/392-67-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/392-64-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/392-84-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/392-49-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/392-61-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/392-55-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/2208-21-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/2208-50-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2208-23-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2208-18-0x0000000000400000-0x00000000004B2000-memory.dmp

Filesize
712KB

Download
memory/2208-7-0x00000000006B0000-0x00000000006B1000-memory.dmp

Filesize
4KB

Download
memory/3856-1-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/3856-17-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/4076-46-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4076-45-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4076-42-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download
memory/4076-41-0x0000000000400000-0x000000000063C000-memory.dmp

Filesize
2.2MB

Download

Analysis

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