isrstealer | c970ead0023376ae7d13d55f16e7242b04efce55ddb923acece5ef254f2b3492

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
03-07-2024 11:04

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General

Target

222386d52df00ece988740b592c4d035_JaffaCakes118.exe
Size

225KB
MD5

222386d52df00ece988740b592c4d035
SHA1

3f54f12c9d0c5cbdee07d44638845224bd0ba80a
SHA256

c970ead0023376ae7d13d55f16e7242b04efce55ddb923acece5ef254f2b3492
SHA512

ab28b3af691b7f716669159d11d0eeaeeba58effa605901023ae860cbd64ad06dff77691d0450debe8b4b08d85f6a10c84730b929b6c7c1d085acb38582bc887
SSDEEP

6144:KlaAyIAWVT/c770ecOaCKWHVBwF8I8cUHI+3XIfwPG:KASTVbc770C/KWAFT8c0HOw

Score

10^/10

isrstealer persistence stealer trojan

Malware Config

Signatures

ISR Stealer
ISR Stealer is a modified version of Hackhound Stealer written in visual basic.
trojan stealer isrstealer

ISR Stealer payload 1 IoCs

resource	yara_rule
behavioral2/memory/2576-0-0x0000000000400000-0x0000000000432000-memory.dmp	family_isrstealer

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\222386d52df00ece988740b592c4d035_JaffaCakes118 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\222386d52df00ece988740b592c4d035_JaffaCakes118.exe"	222386d52df00ece988740b592c4d035_JaffaCakes118.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2464 set thread context of 2576	2464	222386d52df00ece988740b592c4d035_JaffaCakes118.exe	86

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	msedge.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemProductName	msedge.exe

Suspicious behavior: EnumeratesProcesses 10 IoCs

pid	Process
4800	msedge.exe
4800	msedge.exe
2576	msedge.exe
2576	msedge.exe
1640	identity_helper.exe
1640	identity_helper.exe
3576	msedge.exe
3576	msedge.exe
3576	msedge.exe
3576	msedge.exe

Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 7 IoCs

pid	Process
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe

Suspicious use of FindShellTrayWindow 25 IoCs

pid	Process
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe

Suspicious use of SendNotifyMessage 24 IoCs

pid	Process
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe
2576	msedge.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 2576	2464	222386d52df00ece988740b592c4d035_JaffaCakes118.exe	86
PID 2464 wrote to memory of 2576	2464	222386d52df00ece988740b592c4d035_JaffaCakes118.exe	86
PID 2464 wrote to memory of 2576	2464	222386d52df00ece988740b592c4d035_JaffaCakes118.exe	86
PID 2464 wrote to memory of 2576	2464	222386d52df00ece988740b592c4d035_JaffaCakes118.exe	86
PID 2464 wrote to memory of 2576	2464	222386d52df00ece988740b592c4d035_JaffaCakes118.exe	86
PID 2464 wrote to memory of 2576	2464	222386d52df00ece988740b592c4d035_JaffaCakes118.exe	86
PID 2576 wrote to memory of 3568	2576	msedge.exe	91
PID 2576 wrote to memory of 3568	2576	msedge.exe	91
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 412	2576	msedge.exe	93
PID 2576 wrote to memory of 4800	2576	msedge.exe	94
PID 2576 wrote to memory of 4800	2576	msedge.exe	94
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95
PID 2576 wrote to memory of 4568	2576	msedge.exe	95

C:\Users\Admin\AppData\Local\Temp\222386d52df00ece988740b592c4d035_JaffaCakes118.exe
"C:\Users\Admin\AppData\Local\Temp\222386d52df00ece988740b592c4d035_JaffaCakes118.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
  "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"
  2⤵
  - Enumerates system info in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2576
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=crashpad-handler "--user-data-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" /prefetch:7 --monitor-self-annotation=ptype=crashpad-handler "--database=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad" "--metrics-dir=C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data" --annotation=IsOfficialBuild=1 --annotation=channel= --annotation=chromium-version=92.0.4515.131 "--annotation=exe=C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --annotation=plat=Win64 "--annotation=prod=Microsoft Edge" --annotation=ver=92.0.902.67 --initial-client-data=0xfc,0x100,0x104,0xd8,0x108,0x7ffa1f8746f8,0x7ffa1f874708,0x7ffa1f874718
    3⤵
    PID:3568
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --gpu-preferences=UAAAAAAAAADgAAAQAAAAAAAAAAAAAAAAAABgAAAAAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=2096 /prefetch:2
    3⤵
    PID:412
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=network.mojom.NetworkService --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=2312 /prefetch:3
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:4800
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=storage.mojom.StorageService --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --lang=en-US --service-sandbox-type=utility --mojo-platform-channel-handle=2644 /prefetch:8
    3⤵
    PID:4568
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=6 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3304 /prefetch:1
    3⤵
    PID:3604
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=5 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=3396 /prefetch:1
    3⤵
    PID:2032
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=7 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4164 /prefetch:1
    3⤵
    PID:1528
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=8 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=4644 /prefetch:1
    3⤵
    PID:3884
- - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5264 /prefetch:8
    3⤵
    PID:636
- - C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\92.0.902.67\identity_helper.exe" --type=utility --utility-sub-type=winrt_app_id.mojom.WinrtAppIdService --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --lang=en-US --service-sandbox-type=none --mojo-platform-channel-handle=5264 /prefetch:8
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:1640
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=10 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5268 /prefetch:1
    3⤵
    PID:1788
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --lang=en-US --disable-client-side-phishing-detection --instant-process --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=11 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5292 /prefetch:1
    3⤵
    PID:2252
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=renderer --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --lang=en-US --disable-client-side-phishing-detection --device-scale-factor=1 --num-raster-threads=4 --enable-main-frame-before-activation --renderer-client-id=12 --no-v8-untrusted-code-mitigations --mojo-platform-channel-handle=5036 /prefetch:1
    3⤵
    PID:3656
- - C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=gpu-process --field-trial-handle=2088,2705548487316928217,6265117973968890588,131072 --disable-gpu-sandbox --use-gl=disabled --gpu-vendor-id=4318 --gpu-device-id=140 --gpu-sub-system-id=0 --gpu-revision=0 --gpu-driver-version=10.0.19041.546 --gpu-preferences=UAAAAAAAAADoAAAQAAAAAAAAAAAAAAAAAABgAAAEAAAwAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAHgAAAAAAAAAeAAAAAAAAAAoAAAABAAAACAAAAAAAAAAKAAAAAAAAAAwAAAAAAAAADgAAAAAAAAAEAAAAAAAAAAAAAAADQAAABAAAAAAAAAAAQAAAA0AAAAQAAAAAAAAAAQAAAANAAAAEAAAAAAAAAAHAAAADQAAAAgAAAAAAAAACAAAAAAAAAA= --mojo-platform-channel-handle=1944 /prefetch:2
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    PID:3576

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:1904

C:\Windows\System32\CompPkgSrv.exe
C:\Windows\System32\CompPkgSrv.exe -Embedding
1⤵
PID:808

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
dabfafd78687947a9de64dd5b776d25f

SHA1
16084c74980dbad713f9d332091985808b436dea

SHA256
c7658f407cbe799282ef202e78319e489ed4e48e23f6d056b505bc0d73e34201

SHA512
dae1de5245cd9b72117c430250aa2029eb8df1b85dc414ac50152d8eba4d100bcf0320ac18446f865dc96949f8b06a5b9e7a0c84f9c1b0eada318e80f99f9d2b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Crashpad\settings.dat

Filesize
152B

MD5
c39b3aa574c0c938c80eb263bb450311

SHA1
f4d11275b63f4f906be7a55ec6ca050c62c18c88

SHA256
66f8d413a30451055d4b6fa40e007197a4bb93a66a28ca4112967ec417ffab6c

SHA512
eeca2e21cd4d66835beb9812e26344c8695584253af397b06f378536ca797c3906a670ed239631729c96ebb93acfb16327cf58d517e83fb8923881c5fdb6d232

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
5KB

MD5
5429a87067fc3773db6bb6c9b1aad7e9

SHA1
4af9cf3ebe55dc3641d1c85449c2a86ba6e62d5f

SHA256
6f0171da3126b510e0e4afb5e87ddb4ff440079803273038d560e91b8c05e4e2

SHA512
f9ca71407ba95b57797f468677c8417643bd26a450ba055ea90994712fc69386e6545a64e81aaaac0d362039f4cebbef3e1bba75ac20afcbb93ebf0c6bb54cf9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Preferences

Filesize
6KB

MD5
80cba6082090cec5f96f14f628eddc06

SHA1
e9c586bfb74ed4fdc891462c17b62368b1877f62

SHA256
f36f1d672977cc3e74ff0254c6465e7b36efaff2c865ad44e68ed16b8d1a3e46

SHA512
efbe7701ce3b41316b495925a68bda5fa8e56e6816200eaac1a66cf3cf890d2d5dc23749a8c1aa3e728f927618cbbd9bb8949f00b553b0bb6dd6c197f8c48b8a

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\data_reduction_proxy_leveldb\CURRENT

Filesize
16B

MD5
6752a1d65b201c13b62ea44016eb221f

SHA1
58ecf154d01a62233ed7fb494ace3c3d4ffce08b

SHA256
0861415cada612ea5834d56e2cf1055d3e63979b69eb71d32ae9ae394d8306cd

SHA512
9cfd838d3fb570b44fc3461623ab2296123404c6c8f576b0de0aabd9a6020840d4c9125eb679ed384170dbcaac2fa30dc7fa9ee5b77d6df7c344a0aa030e0389

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Local State

Filesize
11KB

MD5
768a7b679fcffe85d737b0dbb4ede197

SHA1
9fe1e83f5866bcf0a8fa412599767a78d216b748

SHA256
124bd11d271516f4ea2bda394cfee7b3c201fb81123ef2fd24ed9eb795b202dc

SHA512
ec0f56a7f8a887ba98ae4e86195e74811438afa69a67f148200001247ca286092318f9b35b77fd2d45f91216832eb131591827d46ba271a4a7997813873dbaac

Download Submit
memory/2576-0-0x0000000000400000-0x0000000000432000-memory.dmp

Filesize
200KB

Download